Boys 4-Piece Slim Fit Twill Suit, Midnight Blue
SIRRI
Includes: Jacket + Trousers + Waistcoat + Tie, slim fit
From £29.97Item price · delivery at checkout
Fits 86–158 cm
Check total at SIRRI (opens in a new tab)Brand
SIRRI Boys' Suits
SIRRI's general size chart and the suits and separates we list. Check the guide attached to each garment: chart families can differ.
Find his size9 sizes in the chart27 suits comparedCheck totals at the retailer
SIRRI suits compared
Size chart & fit notes ↓SIRRI boys' suits
Showing all 27
Boys 5-Piece Slim Fit Piping Tuxedo Dinner Suit Set, Black
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Bow tie, slim fit
From £29.97Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit 5-Piece Tuxedo Dinner Suit Set, Navy Blue
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Bow tie, slim fit
From £38.97Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys 7-Piece Slim Fit Twill Suit, Midnight Blue
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £39.97Item price · delivery at checkoutFits 86–158 cm
Check total at SIRRI (opens in a new tab)Boys 7-Piece Slim Fit Twill Suit, Grey
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £39.97Item price · delivery at checkoutFits 86–158 cm
Check total at SIRRI (opens in a new tab)Boys 4-Piece Slim Fit Double Breasted Suit Set, Navy
SIRRI
Includes: Jacket + Trousers + Shirt + Bow tie, slim fit
From £39.97Item price · delivery at checkoutFits 80–163 cm
Check total at SIRRI (opens in a new tab)Other listed colours: Black, Navy
Boys 4-Piece Textured Double Breasted Suit, Montero Cream
SIRRI
Includes: Jacket + Trousers + Waistcoat + Tie
From £44.97Item price · delivery at checkoutFits 98–176 cm
Check total at SIRRI (opens in a new tab)Other listed colours: Black, Cream
Boys 4-Piece Textured Double Breasted Suit, Montero Navy
SIRRI
Includes: Jacket + Trousers + Waistcoat + Tie
From £49.97Item price · delivery at checkoutFits 98–176 cm
Check total at SIRRI (opens in a new tab)Other listed colours: Cream, Navy
Boys 4-Piece Textured Double Breasted Suit, Montero Black
SIRRI
Includes: Jacket + Trousers + Waistcoat + Tie
From £49.97Item price · delivery at checkoutFits 98–176 cm
Check total at SIRRI (opens in a new tab)Boys 3-Piece Tailored Fit Communion White Suit
SIRRI
Includes: Jacket + Trousers + Waistcoat
From £49.97Item price · delivery at checkoutFits 86–170 cm
Check total at SIRRI (opens in a new tab)Boys 4-Piece Slim Fit Double Breasted Suit Set, Dark Green
SIRRI
Includes: Jacket + Trousers + Shirt + Bow tie, slim fit
From £52.97Item price · delivery at checkoutFits 80–163 cm
Check total at SIRRI (opens in a new tab)Boys 4-Piece Slim Fit Double Breasted Suit Set, Light Brown
SIRRI
Includes: Jacket + Trousers + Shirt + Bow tie, slim fit
From £54.97Item price · delivery at checkoutFits 80–163 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit Textured 8-Piece Formal Suit Set, Taupe Beige
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit Textured 8-Piece Formal Suit Set, Navy
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit Textured 8-Piece Formal Suit Set, Black
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit Textured 8-Piece Formal Suit Set, Sky Blue
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit Textured 8-Piece Formal Suit Set, Beige
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit Textured 8-Piece Formal Suit Set, Khaki Green
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit Textured 8-Piece Formal Suit Set, Grey
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £55.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Slim Fit Textured 8-Piece Formal Suit Set, Slate Grey
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £55.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys Communion Slim Fit Textured 8-Piece Formal Suit Set, Ivory
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £55.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, Black
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £69.97Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, Navy
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £69.97Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, Blue
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £69.97Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys 5-Piece Ivory Suit Set, with Double-Breasted Vest, Ivory
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt
From £69.99Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, White
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £74.97Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, Ivory
SIRRI
Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £74.97Item price · delivery at checkoutFits 80–176 cm
Check total at SIRRI (opens in a new tab)
| Item | Fits height | Price | Where to buy |
|---|---|---|---|
Boys 4-Piece Slim Fit Twill Suit, Midnight BlueSIRRI. Includes: Jacket + Trousers + Waistcoat + Tie, slim fit | 86–158 cm | From £29.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 5-Piece Slim Fit Piping Tuxedo Dinner Suit Set, BlackSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Bow tie, slim fit | 80–176 cm | From £29.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit 5-Piece Tuxedo Dinner Suit Set, Navy BlueSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Bow tie, slim fit | 80–176 cm | From £38.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 7-Piece Slim Fit Twill Suit, Midnight BlueSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 86–158 cm | From £39.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 7-Piece Slim Fit Twill Suit, GreySIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 86–158 cm | From £39.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 4-Piece Slim Fit Double Breasted Suit Set, NavySIRRI. Includes: Jacket + Trousers + Shirt + Bow tie, slim fit | 80–163 cm | From £39.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 4-Piece Textured Double Breasted Suit, Montero CreamSIRRI. Includes: Jacket + Trousers + Waistcoat + Tie | 98–176 cm | From £44.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 4-Piece Textured Double Breasted Suit, Montero NavySIRRI. Includes: Jacket + Trousers + Waistcoat + Tie | 98–176 cm | From £49.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 4-Piece Textured Double Breasted Suit, Montero BlackSIRRI. Includes: Jacket + Trousers + Waistcoat + Tie | 98–176 cm | From £49.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 3-Piece Tailored Fit Communion White SuitSIRRI. Includes: Jacket + Trousers + Waistcoat | 86–170 cm | From £49.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 4-Piece Slim Fit Double Breasted Suit Set, Dark GreenSIRRI. Includes: Jacket + Trousers + Shirt + Bow tie, slim fit | 80–163 cm | From £52.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 4-Piece Slim Fit Double Breasted Suit Set, Light BrownSIRRI. Includes: Jacket + Trousers + Shirt + Bow tie, slim fit | 80–163 cm | From £54.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit Textured 8-Piece Formal Suit Set, Taupe BeigeSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £54.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit Textured 8-Piece Formal Suit Set, NavySIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £54.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit Textured 8-Piece Formal Suit Set, BlackSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £54.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit Textured 8-Piece Formal Suit Set, Sky BlueSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £54.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit Textured 8-Piece Formal Suit Set, BeigeSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £54.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit Textured 8-Piece Formal Suit Set, Khaki GreenSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £54.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit Textured 8-Piece Formal Suit Set, GreySIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £55.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Slim Fit Textured 8-Piece Formal Suit Set, Slate GreySIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £55.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys Communion Slim Fit Textured 8-Piece Formal Suit Set, IvorySIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit | 80–176 cm | From £55.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, BlackSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie | 80–176 cm | From £69.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, NavySIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie | 80–176 cm | From £69.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, BlueSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie | 80–176 cm | From £69.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 5-Piece Ivory Suit Set, with Double-Breasted Vest, IvorySIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt | 80–176 cm | From £69.99Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, WhiteSIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie | 80–176 cm | From £74.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, IvorySIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie | 80–176 cm | From £74.97Item price · delivery at checkout | Check total at SIRRI (opens in a new tab) |
- Boys 4-Piece Slim Fit Twill Suit, Midnight Blue
SIRRI. Includes: Jacket + Trousers + Waistcoat + Tie, slim fit
From £29.97Item price · delivery at checkout86–158 cmCheck total at SIRRI (opens in a new tab) - Boys 5-Piece Slim Fit Piping Tuxedo Dinner Suit Set, Black
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Bow tie, slim fit
From £29.97Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit 5-Piece Tuxedo Dinner Suit Set, Navy Blue
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Bow tie, slim fit
From £38.97Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys 7-Piece Slim Fit Twill Suit, Midnight Blue
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £39.97Item price · delivery at checkout86–158 cmCheck total at SIRRI (opens in a new tab) - Boys 7-Piece Slim Fit Twill Suit, Grey
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £39.97Item price · delivery at checkout86–158 cmCheck total at SIRRI (opens in a new tab) - Boys 4-Piece Slim Fit Double Breasted Suit Set, Navy
SIRRI. Includes: Jacket + Trousers + Shirt + Bow tie, slim fit
From £39.97Item price · delivery at checkout80–163 cmCheck total at SIRRI (opens in a new tab) - Boys 4-Piece Textured Double Breasted Suit, Montero Cream
SIRRI. Includes: Jacket + Trousers + Waistcoat + Tie
From £44.97Item price · delivery at checkout98–176 cmCheck total at SIRRI (opens in a new tab) - Boys 4-Piece Textured Double Breasted Suit, Montero Navy
SIRRI. Includes: Jacket + Trousers + Waistcoat + Tie
From £49.97Item price · delivery at checkout98–176 cmCheck total at SIRRI (opens in a new tab) - Boys 4-Piece Textured Double Breasted Suit, Montero Black
SIRRI. Includes: Jacket + Trousers + Waistcoat + Tie
From £49.97Item price · delivery at checkout98–176 cmCheck total at SIRRI (opens in a new tab) - Boys 3-Piece Tailored Fit Communion White Suit
SIRRI. Includes: Jacket + Trousers + Waistcoat
From £49.97Item price · delivery at checkout86–170 cmCheck total at SIRRI (opens in a new tab) - Boys 4-Piece Slim Fit Double Breasted Suit Set, Dark Green
SIRRI. Includes: Jacket + Trousers + Shirt + Bow tie, slim fit
From £52.97Item price · delivery at checkout80–163 cmCheck total at SIRRI (opens in a new tab) - Boys 4-Piece Slim Fit Double Breasted Suit Set, Light Brown
SIRRI. Includes: Jacket + Trousers + Shirt + Bow tie, slim fit
From £54.97Item price · delivery at checkout80–163 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit Textured 8-Piece Formal Suit Set, Taupe Beige
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit Textured 8-Piece Formal Suit Set, Navy
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit Textured 8-Piece Formal Suit Set, Black
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit Textured 8-Piece Formal Suit Set, Sky Blue
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit Textured 8-Piece Formal Suit Set, Beige
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit Textured 8-Piece Formal Suit Set, Khaki Green
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £54.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit Textured 8-Piece Formal Suit Set, Grey
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £55.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Slim Fit Textured 8-Piece Formal Suit Set, Slate Grey
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £55.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys Communion Slim Fit Textured 8-Piece Formal Suit Set, Ivory
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie + Bow tie, slim fit
From £55.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, Black
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £69.97Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, Navy
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £69.97Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, Blue
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £69.97Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys 5-Piece Ivory Suit Set, with Double-Breasted Vest, Ivory
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt
From £69.99Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, White
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £74.97Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab) - Boys 5-Piece Floral Jacquard Tuxedo Suit with Double Breasted Waistcoat, Ivory
SIRRI. Includes: Jacket + Trousers + Waistcoat + Shirt + Tie
From £74.97Item price · delivery at checkout80–176 cmCheck total at SIRRI (opens in a new tab)
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SIRRI size chart
| Size | Fits height up to (cm) | Chest (cm) | Waist (cm) |
|---|---|---|---|
| 6–12 mths | 80 cm | 50 cm | 49 cm |
| 12–18 mths | 86 cm | 51 cm | 50 cm |
| 18–24 mths | 92 cm | 52 cm | 51 cm |
| 2–3 yrs | 98 cm | 54 cm | 52 cm |
| 3–4 yrs | 104 cm | 56 cm | 54 cm |
| 5–6 yrs | 116 cm | 60 cm | 56 cm |
| 7–8 yrs | 128 cm | 65 cm | 58 cm |
| 9–10 yrs | 140 cm | 70 cm | 62 cm |
| 11–12 yrs | 152 cm | 76 cm | 67 cm |
Source: Transcribed from SIRRI's online page-boy size guide, checked 10 Nov 2026. Recorded chart values in whole cm; inches are approximate. Confirm the current item guide and offered sizes before ordering; this chart is not a fit or stock guarantee.
Try the jacket over the shirt and waistcoat he will wear. Check the full set before ordering.