Size chart & sizing guide O'Neill - Boots Wetsuits

Measure your foot length (Mondopoint) to find the corresponding size. Important: Add 2-3 mm to your measured foot length before checking the official size conversion chart below to ensure a proper fit.

Conversion chart - Find your size

Foot lengthMondopointUKUK KidsUS MenUS KidsEU size
6.7"170 mm7C7C7Y7Y26
6.9"175 mm8C8C8Y8Y27
7.1"180 mm9C9C9Y9Y28
7.3"185 mm10C10C10Y10Y29
7.5"190 mm11C11C11Y11Y30
7.9"200 mm12C12C12Y12Y31
8.1"205 mm13C13C13C13C32
8.3"210 mm111133
8.5"215 mm222234
8.7"220 mm333335

Notice: This brand does not use the same sizing guide for all products. Please check the sizing guide we show on each product.

How to Measure

Follow the instructions below and compare your measurements with the size chart

Foot length

Place your foot against a wall and measure the distance from the wall to the tip of your toes.

Manufacturers do not always use the same sizes for shoes. Therefore, we recommend using the foot length to find the correct size. The international standard for foot length is known as Mondopoint and indicates the size of the foot in millimeters (mm).

How to measure your foot length

Tip! Use a soft measuring tape, to ensure that the product fits properly. Alternatively, use a piece of string and then measure it against a ruler

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