We want you to be able to find the correct O'Neill size quickly and easily. Here you will find measurements and international conversions for clothing and equipment converted into standard UK sizes. We have included information taken directly from O'Neill to ensure the most up to date and appropriate sizing is used. We have made sure the information for Men's, Women's and Kid's products is accurate and listed them in the size charts below. If the information you are looking for isn't available, please feel free to contact us. 

• • Jackets and Tops
• • Trousers, Ski Pants and Shorts
• • Footwear

O'Neill Jackets & Tops

Measuring your chest size is an adequate way to determine what size garment you should be looking for. This applies to jackets, base layers, mid layers and any other tops. Please see below what size is specific to you suggested by the brand.

Men's O'Neill Jackets & Tops Size Chart

Inches

Centimetres

Women's O'Neill Jackets & Tops Size Chart

Inches

Centimetres

Boys' O'Neill Jackets & Tops Size Chart

Inches

Centimetres

Girls' O'Neill Jackets & Tops Size Chart

Inches

Centimetres

Source: O'Neill 

Found the right size? Shop O'Neill here. 

O'Neill Fit Guide

O'Neill tailor the fit of their products depending on the activity they are designed for. Some of their jackets, tops and shirts come in different 'fits', so be sure to check the product description on the item to see which fit applies.

• Regular Fit: This is a classic/standard fit, designed to provide space for layering whilst maintaining a stylish look.
• Relaxed/Loose Fit: Drapes over the body, allowing better manoeuvrability and space for layering underneath.
• Slim Fit: Provides close-fitting support and comfort, perfect for wearing over base layers and light mid layers.
• Athletic Fit: Provides close-fitting support and comfort when undertaking physical activities, contouring to the shape of your body without reducing freedom of movement.  

In Our Opinion:

O'Neill jackets and tops tend to fit very closely to the size chart above, so for a good fit, please go by these measurements. If you want a baggy look and feel, go for a size larger or a different fit. We are confident in the fit of these garments because:

• We have tried the jackets on ourselves, in a full range of models and sizes.
• We monitor customer returns.
• We see customers wearing the jackets in our Snowboard/Ski Shop
• We have been selling them for years! 

When trying on garments, please allow for:

• The wearing of mid and / or base layers beneath the jacket
• The freedom of movement required for skiing, snowboarding and other outdoor activities
• The cut and style of the jacket
• The insulation which may or may not be included in a particular jacket

All of the above will differ depending on a jacket's specific design. A jacket's physical dimensions will always be significantly greater than your actual chest measurement but this difference will also vary from jacket to jacket. We strongly recommend that you never measure a jacket to determine the chest size you need.  

How to Measure Yourself 

•  • Wear just an undergarment or nothing at all.
•  • Stand up straight with your arms hanging by your sides
•  • Breath normally and run a soft tape measure under your arm pits over the largest part of your chest and across your shoulder blades. 
•  • The tape measure should be snug, but not tight.
•  • For your inseam, make sure you measure from the floor up.

O'Neill Trousers, Ski Pants & Shorts 

In order to determine the correct trouser and shorts size, you need to consider a few different measurements for men and women. These apply to all outdoor trousers, ski and snowboard pants, and any item worn on the bottom half of your body. 

Men's O'Neill Waist & Hip Size Chart

Inches

Centimetres

Women's O'Neill Waist & Hip Size Chart

Inches

Centimetres

Boys' O'Neill Waist & Hip Size Chart

Inches

Centimetres

Girls' O'Neill Waist & Hip Size Chart

Inches

Centimetres

Source: O'Neill 

Found the right size? Shop O'Neill here. 

The waistband size, as physically measured on a pair of pants, will rarely be the same as that quoted by the manufacturer because the manufacturer quotes the waist measurement of the person the pants are designed to fit and the waistband rarely aligns with a person's natural waist line. 

If a manufacturer quotes a 34" waist, the pants should fit you if you have a 34 Inch waist but the waist band on the pants, depending on the cut of the pants, may not actually be 34 Inches. Please be aware of waist adjusters and built-in belts. If you decide to wear impact shorts, you might need to go up a size to make sure they fit under your trousers. 

When you measure the inseam on a pair of snowboard or ski pants, it should be similar to your own inside leg measurement but people often wear snowboard or ski pants with shorter inseams than their inside leg measurement or their normal fashion trousers because: 

1.  Snowboard and ski boots are bulky and rise up your leg a fair way. 

2.  It's the fashion to wear your pants with the crotch low down towards your knees so, if you are one of these people, the inside leg measurement makes precious little difference. 

3.  People also wear pants with extra long legs if they like the bunched up look.

O'Neill Fit Guide

O'Neill tailor the fit of their products depending on the activity they are designed for. Some of their trousers come in different 'fits', so be sure to check the product description on the item to see which fit applies. 

• • Regular Fit: This is a classic/standard fit, designed to provide space for layering whilst maintaining a stylish look.
  • Relaxed/Comfort Fit: Drapes over the body, allowing better manoeuvrability and space for layering underneath.
  • Slim/Skinny Fit: Provides close-fitting support and comfort, perfect for wearing over base layers and light mid layers.
  • Athletic/Body Fit: Provides close-fitting support and comfort when undertaking physical activities, contouring to the shape of your body without reducing freedom of movement.  

O'Neill Footwear 

When purchasing boots or shoes, we strongly recommend using the 'Mondo' measuring system, rather than your normal shoe size. The Mondo scale is dead easy! Mondo 30.0 means the footbed liner or insole of your shoe is exactly 30cm long. Some manufacturers call it Mondo 300 but this simply means your insole is 300mm long so is exactly the same.

The mondo point scale was invented in Japan so it is sometimes also referred to as Japanese sizing. To work out what shoe size you need using the mondo scale, simply find a pair of boots, trainers or shoes that fit you well and either look at the MP size quoted on the size label or remove the insole. Measure the insole using a steal measuring tape measuring from the extreme tip of the toe to the extreme tip of the heel. The measurement will ALWAYS be exact to the nearest 5mm. You will never get 30.2 or 28.8. It will always be 30.0 exactly. This is your mondo shoe or boot size. This is the standard footwear conversions for Mondo, UK, USA and EU for both men and women.

PLEASE NOTE - All footwear is listed in UK sizes on our site.

O'Neill Adults' Trainers, Sandals and Other Footwear Size Chart

O'Neill Kids' Trainers, Sandals and Other Footwear Size Chart

Source: O'Neill 

Found the right size? Shop O'Neill here. 

Still not sure what size to get?
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