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Boys wearing M&S school uniform

Adventures come in
all shapes and sizes

Make sure his uniform is fitting
perfectly ahead of the new school term with
our easy-to-use size and fit guide

For good measure

1. Chest
Measure the chest at the fullest part, placing the tape close up under the arms

2. Waist
Measure the natural waistline

3.Collar
Measure around the base of the neck where the collar sits

4. Inside leg
Measure from the crotch to where the trouser hem falls on the shoe

5. Height
Without shoes, place feet together flat on the floor, and measure from the top of the head to the ground

HANDY TIP
If you’re buying a school blazer, it’s also a good idea to measure from the centre of the neck to the hemline

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    Sizes for Dresses, Jumpers & Cardigans, Shirts, Blouses & Polo Shirts, Skirts

     
    Age Height Chest Waist Collar
    2-3 35½-38½ 20-21¼ 20-20½ 11
    3-4 38½-41 21¼-22 20½-21 11
    4-5 41-43¼ 22-22¾ 21-21¾ 11
    5-6 43¼-45¾ 22¾-24 21¾-22 11½
    6-7 45¾-48 24-24¾ 22-22½ 12
    7-8 48-50¼ 24¾-26 22½-23¼ 12
    8-9 50¼-52¾ 26-27 23¼-24 12¼
    9-10 52¾-55 27-28½ 24-24¾ 12½
    10-11 55-57½ 28½-29½ 24¾-26 13
    11-12 57½-59¾ 29½-30½ 26-26¾ 13½
    12-13 59¾-62¼ 30½-32¼ 26¾-27¾ 14
    13-14 62¼-64½ 32¼-34 27¾-28¾ 14½
    14-15 64½-67 34-35½ 28¾-30 15
    15-16 67-69¼ 35½-37 30-32 15½
    Age Chest Blazer length
    2-3 20-21¼ 17½
    3-4 21¼-22 18
    4-5 22-22¾ 19
    5-6 22¾-24 19¾
    6-7 24-24¾ 20¾
    7-8 24¾-26 21½
    8-9 26-27 22½
    9-10 27-28½ 23¼
    10-11 28½-29½ 24½
    11-12 29½-30½ 25
    12-13 30½-32¼ 26¼
    13-14 32¼-34 27
    14-15 34-35½ 28¾
    15-16 35½-37 30¼
    Age Waist Standard (Inside Leg)
    2-3 20 - 20½ 15¾
    3-4 20½ - 21 17½
    4-5 21 - 21¾ 19
    5-6 21¾ - 22 20
    6-7 22 - 22½ 21¼
    7-8 22½ -23¼ 22½
    8-9 23¼ -24 23½
    9-10 24 - 24¾ 24¾
    10-11 24¾- 26 26
    11-12 26 -26¾ 27½
    12-13 26¾ -27¾ 28½
    13-14 27¾ -28¾ 29½
    14-15 28¾ -30 31
    15-16 30-32 31
  •  
    View sizes for |
     

    Sizes for Dresses, Jumpers & Cardigans, Shirts, Blouses & Polo Shirts, Skirts

     
    Age Height Chest Waist Hips
    2-3 35½-38½ 19-19½ 18-19 19¼-20
    3-4 38½-41 19½ -20 19-19½ 20-21¼
    4-5 41-43¼ 20½-21¼ 19½-20 21¼-22½
    5-6 43¼-45¾ 21¼-22½ 20-20½ 22½-23½
    6-7 45¾-48 22½-23¼ 20½-21 23½-24¾
    7-8 48-50¼ 23¼-24½ 21-21¼ 24¾-26
    8-9 50¼-52¾ 24½-25½ 21¼-22 26-27¼
    9-10 52¾-55 25½-26¾ 22-23 27¼-28¾
    10-11 55-57½ 26¾-28 23-23¼ 28¾-30
    11-12 57½-59¾ 28-29 23¼-23½ 30-31½
    12-13 59¾-62¼ 29-31 23½-24¼ 31½-33
    13-14 62¼-64½ 31-32½ 24¼-24¾ 33-34½
    14-15 64½-64½ 32½-34¼ 24¾-26½ 34½-36¼
    15-16 64½-64½ 34¼-36 26½-28 36¼-37¾
    Age Waist Standard (Inside Leg)
    2-3 18-19 15¾
    3-4 19-19½ 17½
    4-5 19½-20 19
    5-6 20-20½ 20
    6-7 20½-21 21¼
    7-8 21-21½ 22½
    8-9 21½-22½ 23½
    9-10 22½-23½ 24¾
    10-11 23½-24½ 26
    11-12 24½-25 27½
    12-13 25-26 28½
    13-14 26-27 29½
    14-15 27-28½ 31
    15-16 28½-30¼ 31
  •  
    View sizes for | |
     

    Sizes for Dresses, Jumpers & Cardigans, Shirts, Blouses & Polo Shirts, Skirts

     
    Age Height Chest Waist Hips
    2-3 35½-38½ 23-23½ 22½-23 23-24
    3-4 38½-41 23½-24½ 23-23¼ 24-25
    4-5 41-43¼ 24½-25 23¼-24 25-26½
    5-6 43¼-45¾ 25-26½ 24-24½ 26½-27½
    6-7 45¾-48 26½-27 24½-24¾ 27½-28¾
    7-8 48-50¼ 27-28½ 24¾-25 28¾-30
    8-9 50¼-52¾ 28½-29 25-26 30-31½
    9-10 52¾-55 29-30½ 26-26¾ 31½-32½
    10-11 55-57½ 30½-32 26¾-27 32½-34
    11-12 57½-59¾ 32-33 27-27½ 34-35½
    12-13 59¾-62¼ 33-35 27½-28½ 35½-37
    13-14 62¼-64½ 35-36½ 28½-29 37-38½
    14-15 64½-64½ 36½-38 29-30¼ 38½-39¾
    15-16 64½-64½ 38-39¾ 30¼-32 39¾-41¾
    Age Chest Blazer length
    2-3 23-23½ 17½
    3-4 23½-24½ 18
    4-5 24½-25 19
    5-6 25-26½ 19¾
    6-7 26½-27 20¾
    7-8 27-28½ 21½
    8-9 28½-29½ 22½
    9-10 29½-30½ 23¼
    10-11 30½-32 24½
    11-12 32-33 25
    12-13 33-34½ 26¼
    13-14 34½-36¼ 27
    14-15 36¼-37¾ 28¾
    15-16 37¾-39½ 30¼
    Age Waist Standard (Inside Leg)
    2-3 22½-23 15¾
    3-4 23-23¼ 17¼
    4-5 23¼-24 19
    5-6 24-24½ 20
    6-7 24½-24¾ 21¼
    7-8 24¾-25½ 22½
    8-9 25½-26½ 23½
    9-10 26½-27 24¾
    10-11 27-28½ 26
    11-12 28½-29 27½
    12-13 29-30 28½
    13-14 30-31 29½
    14-15 31-32 31
    15-16 32-34 31

Leg shapes

Super skinny leg – our narrowest leg yet with added stretch in the fabric

Skinny leg – a tapered leg for our most fasionable cut

Slim leg – a flattering trouser that is narrower in the leg

Regular leg – our classic straight cut trouser shape is sharp and smart

Shop boys' trousers

Fits

Regular fit – our classic regular fit

Slim fit – a narrower cut through the waist and/or body

Plus fit – wider cut through the waist and/or body

Extra plus fit – bigger than our plus fit for extra comfort and only available online

Shop boys' school uniform

Lengths

Our trouser lengths for boys are short, regular, long and extra long going up in 4cm increments. Our shirt lengths for boys are regular and long, also with a 4cm difference.

Shop boys' school trousers

Shop boys' school shirts