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Marine boys’ Theo t-shirt with printed design on the sleeves by O’Neills.
Marine boys’ Theo t-shirt with printed design on the sleeves by O’Neills.
Marine boys’ Theo t-shirt with printed design on the sleeves by O’Neills.
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Kids' Theo T-Shirt Marine / Royal / Yellow

€19.00
Earn 95 Reward Points
Size Guide

These size charts should be used as a guide to determine the most suitable size. Please note, sizes and fit may vary between styles due to different cuts and fabrics being used.

  • KIDS
    • Clothing
      • O'Neills Leisurewear
        O'Neills - Kids Leisurewear
        Size Chest Waist
          inch cm inch cm
        5/6 25-26" 64-66 20-21" 51-53
        7/8 27-28" 69-71 22-23" 56-58
        9/10 29-30" 74-76 24-25" 61-64
        10/11 31-32" 79-81 26-27" 66-69
        13 34-36" 86-91 28-29" 71-74
        Kids - Single Size Conversions
        UK Size
        US Size
        Euro Size
             
        5/6 6 110-116
        7/8 7/8 122-128
        9/10 10 134-140
        10/11 11 140-146
        13 13 146-154
      • O'Neills Jerseys
        Jerseys - Baby and Kids
        SIZE
        Chest inch
        Chest cm
             
        0-6 months 22-23 57-59.5
        6-12 months 23-24 59-61.5
        1-2 24-25 61-63.5
        3-4 26-27 67-69.5
        5-6 29-30 73-75.5
        7-8 31-32 79-81.5
        9-10 34-35 85-87.5
        10-11 36-37 91-93.5
        11-12 38-39 96-98.5
        Age 13 40-41 101-103.5
      • O'Neills Skorts & Shorts
        O'Neills Skorts - Kids
        Size Waist Inside Leg
        inch cm cm
        5-6 19 48 6.5
        7-8 21 52 7
        9-10 22 56 7.5
        10-11 24 60 8
        13-14 25 64 8.5

        O'Neills Shorts - Kids
        Size
        Waist
        Inside Leg
          inch cm
        1-2 16 8
        3-4 18 8
        5-6 20 8
        7-8 22 8
        9-10 24 9.5
        10-11 26 9.5
        13 28 10.5
      • Canterbury
        Canterbury - Kids Tops
        Size
        Chest cm
        Chest in
             
        Age 6 58.5 - 61 23 - 24
        Age 8 63.5 -66 25 - 26
        Age 10 68.5 - 73.5 27 - 29
        Age 12 76 - 81.5 30 - 32
        Age 14 81.5 - 86 32 - 34
        Canterbury - Kids Bottoms & Shorts
        Size
        Waist cm
        Waist in
             
        Age 6 56 - 58.5 22 - 23
        Age 8 58.5 -61 23 - 24
        Age 10 61 - 66 24 - 26
        Age 12 66 - 71 26 - 28
        Age 14 71 - 73.5 28 - 29
      • Columbia
        Columbia - Kids Bottoms
        Size
        Waist in
        Inseam in
        Age Range
               
        XXS 21.5 18.75 5-6 Years
        XS 22 21.25 7-8 Years
        S 24.5 22 9-10 Years
        M 26.5 26 11-12 Years
        L 29.5 29 13-14 Years
        XL 31 30 15-16 Years
        Columbia - Kids Tops
        Size
        Chest in
        Waist in
        Age Range
               
        XXS 23 21.5 4-5 Years
        XS 25 22 6-7 Years
        S 26.5 23.5 8-9 Years
        M 29.5 25.5 10-11 Years
        L 32.5 27.5 12-13 Years
        XL 35.5 29.5 14-16 Years
      • Speedo
        Speedo - Girls Swimwear
        Age
        Chest
        Waist
        Hips
        Speedo Size
                 
        4-5 22" 21" 23" 22
        5-6 24" 22" 25" 24
        7-8 26" 23" 27.5" 26
        9-10 28.5" 24.5" 30" 28
        11-12 30.5" 25.5" 33" 30
        13-14 33" 27" 35.5" 32
        15-16 36.5" 29" 38" 34

        Speedo - Girls 6mths-6yrs Swimwear
        Size
        Height
        Chest
             
        6-9mths 29-31" 20.5"
        9-12mths 31-33" 21"
        2yrs 36" 22"
        3yrs 39" 23"
        4yrs 43" 23.5"
        5yrs 45" 24.5"
        6yrs 47" 25"

        Speedo - Boys Swimwear
        Age
        Chest
        Waist
        Hips
        Speedo Size
                 
        4-5 21.5" 21" 23.5" 22
        5-6 23.5" 23" 25.5" 24
        7-8 25.5" 24" 27.5" 26
        9-10 28" 26" 29.5" 28
        11-12 30.5" 28" 32" 30
        13-14 33" 30" 34.5" 32
        15-16 36" 32" 37" 34

        Speedo - Junior Boys Swim Shorts
        Age
        Height
        Waist
        Speedo Size
               
        4-5yrs 41" 22 XS
        6-7yrs 46" 24" S
        8-9yrs 50.5" 26" M
        10-11yrs 55" 28" L
        12-13yrs 60" 30" XL
        13-14yrs 60" 30" XXL
        15+yrs 69" 34" XXXL

        Speedo - Boys 6mths-6yrs Swimwear
        Size
        Height
        Chest
             
        6-9mths 29-31" 19.5"
        9-12mths 31-33" 20.5"
        2yrs 36" 21"
        3yrs 39" 21.5"
        4yrs 43" 22"
        5yrs 45" 22.5"
        6yrs 47" 23"

      • Under Armour
        Under Armour - Kids Tops
        SIZE
        Chest inch
        Waist inch
        Height inch
               
        XS 25-26 22-23 48-50
        S 26-28 23-24 50-54
        M 28-30 25-26 54-59
        L 30-32 26.27 59-63
        XL 32-34 28-29 63-67
        Under Armour - Kids Bottoms
        SIZE
        Waist inch
        Hip inch
        Height inch
               
        XS 22-23 25-26 48-50
        S 23-24 26.5-28 50-54
        M 25-26 29-30.5 54-59
        L 26-27 32-33.5 59-63
        XL 28-29 35-36.5 63-67
    • Footwear
      • Asics
        ASICS - Kids Running Shoes
        Ireland / UK
        EU
        CM
        US
               
        9 Infants 27 17 10 Junior
        10 Junior 28.5 17.5 11 Junior
        11 Junior 30 18.5 12 Junior
        11.5 Junior 30.5 19 12.5 Junior
        12 Junior 31.5 19.5 13 Junior
        12.5 Junior 32 19.75 13.5 Junior
        13 Junior 32.5 20 1 Youth
        13.5 Junior 33 20.5 1.5 Youth
        1 Youth 33.5 21 2 Youth
        1.5 Youth 34.5 21.5 2.5 Youth
        2 Youth 35 22 3 Youth
        2.5 Youth 35.5 22.25 3.5 Youth
        3 Youth 36 22.5 4 Youth
        3.5 Youth 37 23 4.5 Youth
        4 Youth 37.5 23.5 5 Youth
        4.5 Youth 38 24 5.5 Youth
        5 Youth 39 24.5 6 Youth
        5.5 Youth 39.5 25 6.5 Youth
        6 Youth 40 25.5 7 Youth
      • Skechers
        Skechers - Infant Footwear
        Ireland / UK
        Europe
        US
             
        1 Infants 17 2
        2 Infants 18.5 3
        3 Infants 19.5 4
        4 Infants 20.5 5
        4.5 Infants 21 5.5
        5 Infants 21.5 6
        5.5 Infants 22 6.5
        6 Infants 22.5 7
        6.5 Infants 23 7.5
        7 Infants 24 8
        7.5 Infants 25 8.5
        8 Infants 25.5 9
        8.5 Infants 26 9.5
        9 Infants 26.5 10
        9.5 Infants 27 10.5

        Skechers - Kids Footwear
        Ireland / UK
        Europe
        US
        10 Junior 27.5 11
        10.5 Junior 28 11.5
        11 Junior 28.5 12
        11.5 Junior 29 12.5
        12 Junior 30 13
        12.5 Junior 31 13.5
        13 Junior 32 1
        13.5 Junior 33 1.5
        1 Junior 33.5 2
        1.5 Junior 34 2.5
        2 Junior 35 3
        2.5 Junior 35.5 3.5
        3 Youth 36 4
        3.5 Youth 36.5 4.5
        4 Youth 37 5
        4.5 Youth 37.5 5.5
        5 Youth 38 6
        5.5 Youth 38.5 6.5
        6 Youth 39 7

      • Under Armour
        Under Armour - Kids Footwear
        Inches
        Ireland / UK
        Euro
        US youth
               
        3 1/8 1.5 Infants 17.5 2K
        3 1/2 2.5 Infants 18.5 3K
        4 3.5 Infants 19.5 4K
        4 1/4 4.5 Infants 21 5K
        4 5/8 5.5 Infants 22 6K
        5 1/8 6.5 Infants 23.5 7K
        5 1/2 7.5 Infants 25 8K
        5 3/4 8.5 Infants 26 9K
        6 1/4 9.5 Infants 27 10K
        6 5/8 10 Junior 27.5 10.5K
        6 3/4 10.5 Junior 28 11K
        7 11 Junior 28.5 11.5K
        7 1/4 11.5 Junior 29.5 12K
        7 1/3 12 Junior 30 12.5
        7 5/8 12.5 Junior 31 13K
        7 3/4 13.5 Junior 32 1
        8 1 Junior 33 1.5
        8 1/4 1.5 Junior 33.5 2
        8 1/3 2 Junior 34 2.5
        8 5/8 2.5 Junior 35 3
        8 3/4 3 Youth 35.5 3.5
        9 3.5 Youth 36 4
        9 1/4 4 Youth 36.5 4.5
        9 1/4 4.5 Youth 37.5 5
        9 1/2 5 Youth 38 5.5
        9 1/2 5.5 Youth 38.5 6
        9 5/8 6 Youth 39 6.5

How to find your size

Use the menu above to select the relevant product type or brand. The tables provide sizing information with the product size displayed on one axis and the body measurements in inches and centimetres on the other. Find the measurements in the table which best match your body measurements to identify the most suitable size.



How to measure your body for clothing sizes


1. CHEST

Hold one end of the tape measure at the fullest part of your chest or bust, using the other hand to guide it under your arms and along your back until it meets. Ensure the tape measure is flat the full way around and horizontal to the floor for an accurate measurement.


2. WAIST

Place the tape measure on the narrowest part of your waist, wrapping it around until it meets. Refrain from holding the tape measure too tight as this will result in an inaccurate measurement.


3. HIPS

Standing straight with your feet close together, locate the widest part of your hips and bottom. Place one end of the tape measure at the widest point, guiding the tape the full way around until it meets. Ensure the tape is parallel to the floor.


4. INSIDE LEG

Take your shoes off and stand with your feet flat on the ground. Place the tape measure at the top of the inner thigh and measure the distance to the ankle.


Sizing Chart
O’Neills sizing chart should be used as a guide only.
Not all garments are available in every size shown.
Measurements may vary depending on design of garment.
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Wishlist
THEO-060-0-GEN-MEROYW-KIDS
Description

Take on the day with the Kids’ Theo T-Shirt. Crafted from a lightweight and breathable fabric, this short-sleeved t-shirt works to keep you cool and comfortable all day long. Perfect for active kids. The fun printed design is complemented by the contrasting O’Neills branding on the chest. Pair with the matching Theo shorts for the full look.

  • Short sleeves
  • Crew neck
  • Fun printed design
  • Quick-drying fabric for reduced wash-to-wear time
  • Lightweight and breathable
  • Moisture management technology moves sweat away from the body
  • O’Neills Theo range – matching items available
  • O’Neills branding
  • Colours: Marine / Royal / Cyber Yellow

SKU: THEO-060-0-GEN-MEROYW-KIDS

Delivery

Ireland 1-2 days from dispatch €3.99

Free Delivery on all orders over €50

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