Collection: ION Youth Size Charts
ION Youth Wetsuits
The ION Wetsuit range has it all. From the best features you can possibly find in a wetsuit to reliable models made from selected materials at irresistible value for money.
They fit! Years of improving our fit combined with thoughtfully developed intermediate sizes and stretchy linings means ion wetsuits fit all body shapes.
All available in frontzip and backzip.
For more information about buying the right ION wetsuit for you from size to thickness, check out our extra blog page. Click Here >>>
Youth wetsuit sizes chart
Height: This is an easy one. It is the distance between the top of your head (skull) to the ground (soles), measured with an upright posture.
Chest: Outline your chest with a tape measure and breathe normally. Notice the variations as you breathe and record the highest number.
Please note: measurements stated below can be only an estimation of the matching wetsuit size! Please always try on the wetsuit to be sure you feel comfortable!
| Youth wetsuit size | Height | Weight | Chest | ||||
| Age Guide | CM | FT'/IN" | KG | LBS | CM | IN" | |
| 104/4 | 4 |
104 - 112 |
3 ft 5 in - 3 ft 8 in |
15 - 22 |
33 - 49 | 55 - 60 |
21.75 - 23.5 |
| 116/6 | 6 | 113 - 123 | 3 ft 8 in - 4 ft 0 in | 21 - 28 | 46 - 62 | 60 - 65 | 23.5 - 25.5 |
| 128/8 | 8 | 124 - 134 | 4 ft 1 in - 4 ft 5 in | 27 - 34 | 60 - 75 | 65 - 70 | 25.5 - 27.5 |
| 140/10 | 10 | 135 - 145 | 4 ft 5 in - 4 ft 9 in | 33 - 40 | 73 - 88 | 70 - 75 | 27.5 - 29.5 |
| 152/12 | 12 | 146 - 155 | 4 ft 9 in - 5 ft 1 in |
39-46 |
112 - 128 | 75 - 80 | 29.5 - 31.5 |
| 164/14 | 14 | 156 - 165 | 5 ft 1 in - 5 ft 5 in | 45 - 52 | 99 - 115 | 80 - 85 | 31.5 - 33.5 |
| 176/16 | 16 | 166 - 176 | 5 ft 5 in - 5 ft 9 in | 51 - 58 | 112 - 128 | 85 - 90 | 33.5 - 35.5 |
Find Your Perfect Wetsuit Fit
Choosing the right wetsuit size can be tricky — it needs to fit like a second skin, snug and secure against your body. A proper fit is essential for warmth, comfort, and performance. However, it shouldn’t feel restrictive or have excess material around your armpits, lower back, or behind the knees.
At H2O Sports, we make finding your ideal wetsuit simple. Our extensive range includes sizes and styles to suit every body type, and our expert team is always happy to help you select the perfect fit.
Keep your measurements handy, explore our Wetsuit Size Guide, and confidently order the right size — no more awkward sandy fitting rooms! Although if you’re local, we’d love for you to visit our H2O Sports Store for a personal fitting experience.
Protection
Youth impact vests
| Size | Height (cm) | IN" | Chest (cm) | IN" |
| 140/10 - Youth 1 | 140-154 | 55.0″-60½″ | 56-66 | 22.0″-26.0″ |
| 152/12 - Youth 2 | 152-166 | 60.0″-65½″ | 66-76 | 26.0″-30.0″ |
| XS | 164-170 | 64½″-67.0″ | 72-82 | 28½″-32.5″ |
| S | 168-174 | 66.0″-68½″ | 80-90 | 31½″-35.5″ |
| M | 172-178 | 67½″-70.0″ | 88-99 | 34½″-39.0″ |
| L | 176-184 | 69½″-72.5″ | 97-108 | 38.0″-42½″ |
| XL | 182-189 | 71½″-74.5″ | 106-116 | 41½″-45.5″ |
| XXL | 187-194 | 73½″-76.5″ | 114-125 | 45.0″-49.0″ |
Here at H2O Sports, we would always recommend going a size up / size larger than the wetsuit size you where, as the impact vests tend to be on the tighter side.
Helmets
| Size | Head Circumference (cm) | IN" |
| S | 53-56 |
21.0″-22.0″ |
| M | 57-60 |
22½″-23.5″ |
| L | 61-63 |
24.0″-25.0″ |
Knee
For knee and elbow pads we recommend a tight fit in order to ensure the best protection.
| Size | 10cm above Knee (cm) | 15cm below knee (cm) |
| S | 37-40 | 33,5-36,1 |
| M | 40-43 | 36,1-38,3 |
| L | 43-46 | 38,3-40,5 |
| XL | 46-50 | 40,5-42,8 |
Elbow
| Size | 15cm above elbow (cm) | 10cm below elbow (cm) |
| S | 26-28 | 19-21 |
| M | 28-30 | 21-23 |
| L | 30-32 | 23-25 |
| XL | 32-36 | 25-29 |
Neoprene Accessories
Boots / Shoes
| EURO | US | UK | Appox Foot Length CM |
| 36 | 5 | 4 | 22.5 |
| 37 | 6 | 5 | 23.5 |
| 38-39 | 7 | 6 | 24.5 |
| 40-41 | 8 | 7 | 25.5 |
| 42 | 9 | 8 | 26.0 |
| 43-44 | 10 | 9 | 27.0 |
| 45-46 | 11 | 10 | 28.0 |
| 47-48 | 12 | 11 | 29.0 |
Gloves
| Size | Circumference around knuckle (cm) | IN" |
| XS | 19.5 | 7½″ |
| S | 20.5 | 8.0″ |
| M | 21.5 | 8½″ |
| L | 22.5 | 9.0″ |
| XL | 23.5 | 9½″ |
Beanies & Hoods
| Size | Inner Circumference (cm) | IN" |
| XXS | 50-54 | 19½″-21.5″ |
| XS | 52-56 |
20½″-22.0″ |
| S | 54-58 |
21½″-23.0″ |
| M | 56-60 |
22.0″-23½″ |
| L | 58-61 |
23.0″-24.0″ |
| XL | 60-62 |
23½″-24.5″ |
Poncho
| Size | Height (cm) | IN" |
| S | 135-175 | 53.0″-69.0″ |
| L | 165-300 | 65.0″-118.0″ |
Do you still have questions about wetsuit & neo accessory after reading this article? If yes you can always contact us on 01202 733744 or mail us at contact@h2o-sports.co.uk and speak to our watersports expert team for any further guidance.