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Open Water Swimming Neoprene Swim Cap OWS

Sale price: $24.99 Regular price:

The neoprene cap keeps your head really warm during open water swimming sessions.

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Sale price: $24.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8575225

Product Features

A photo of the Open Water Swimming Neoprene Swim Cap OWS in use

Open Water Swimming Neoprene Swim Cap OWS | Designed for open water swimmers looking for excellent thermal comfort for the head.

The neoprene cap keeps your head really warm during open water swimming sessions.

Thermal insulation

3 mm neoprene for optimal comfort when swimming in open water.

User comfort

Easy-to-put-on open water swimming neoprene swim cap.

Product Lifestyle Image Gallery

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Open Water Swimming Neoprene Swim Cap OWS,black

Product Customer Reviews

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411 Reviews
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Open Water Swimming Neoprene Swim Cap OWS,black
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cold weather swimming cap

this is a wetsuit for your head, nice for cold open water, too warm for a regular pool


Thanks for your trust Andres. We are glad you love our products.

Yann Payen Product Engineer DECATHLON

Great product

Fit well and kept my hair dry

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Hello Noolia,

Thank you for taking the time to write to us about your product experience. We truly appreciate your feedback.

We would really appreciate it if you could also drop us a google review, it will help others find out about our store easily: 

Wishing you a fantastic day :)

Thanks & Regards,

Decathlon Brampton Team

Perfect for swimming, kiteboarding, scuba

Excellent for keeping extra heat in swimming in cold, kite boarding under helmet and even for scuba diving.

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I love this swimming hat

It really helps to keep me warm when OWS. I wear this for my regular lake swim as well as during several beach holidays. We often plonk ours on our kids as well if there are feeling chilly in the sea or. I would thoroughly recommend this hat!

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Great hat

Fits well. Prefer this design to the caps with straps below the chin.

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Good OWS cap

It stays put, keeps my head warm and I forget that it's there.

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Best cap so far

I wear a silicone cap underneath to protect my ears as the neoprene cap slides a bit. Effective!

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Comfy swimming cap

I needed something warmer than the standard swimming cap for open water swimming. It keeps my head dry and protected from the cold and it’s much easier to put on too.

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open water swimming neoprene swim cap

excellent - rare to find - good price

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Keeps popping off my head

It’s warm and it starts out well but as swim goes on I can feel it working it’s way off my head - so I end up tugging it down several times per swim.

Go up a size

Really warm. Definitely stops brain freeze. I read the reviews good and bad. I have long hair so opted for the L/XL as neoprene doesn't stretch in the same way as silicon. Love the ear guards, and the longer back helps reduce water getting in. Neoprene is not waterproof so your hair will get damp or wet, but many outdoor/Open water swimmers will double up and use a regular swim cap too.

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Warm and comfortable

This does exactly what it says it does. Its warm and comfortable to wear. What more to say?


It works warm head in cold water

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Hat pings off

I have a M/L and i do not have a large head but this hat does not stay on it just works it’s way up and sits above your head leaving the back and sides exposed

Dear Alex,

Thank you for your recent feedback. We are sorry to hear that you have some issues with our open water swimming cap. It is difficult to advise any solution in your case as it is very individual. I have seen many open water swimmer using both caps during cold months. Silicon first then neoprene on top. Maybe try this combination? Of course if this is not going to work for you as well then we will be very happy to accept return of the product and arrange full refund.

Once again apologies for any inconvenience caused.

Kind regards,

Kornel - Water Sports Commercial Leader

Great fit neoprane cap

Easy to put on , does a good job of keeping head warm in cold temperatures

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Additional Product Information



  • 100% Rubber - Chloroprene - Neoprene


  • 100% Polyamide


Size M-L: head size 21.3" to 22". Size L-XL: head size 22.4" to 23.2"



Storage instructions

Store open water swimming cap in a dry place.

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For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

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Size Guide Visual