Product Colors and Sizes

Special product, Innovation Special product, New Release Special product, Special product, Sale

Aquafreeze 500 Helmet Liner

Sale price: $19.99 Regular price:
Color: Select a color
Size: Select a size
Sale price: $19.99 Regular price:

Free returns

Free shipping over $30

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8300693

Product Features

A photo of the Aquafreeze 500 Helmet Liner in use

Aquafreeze 500 Helmet Liner is designed for cycling in hot weather.

Aquafreeze fabric that once damp does not let water penetrate through its hydrophobic surface. Your skin remains dry, and as the water evaporates it lowers your skin's temperature by 5.4°F.

Enhanced cooling

As water evaporates (from damp fabric) it lowers your skin temperature by 5°F.

Anatomical design

Stretchy enough to fit different head sizes.


A lightweight product that's easy to wear in hot weather.

Product Customer Reviews

Skip to reviews
172 Reviews
Write a Review 

Aquafreeze 500 Helmet Liner,snowy white
Filtered by reviews Loading reviews…

The white gets dirty so easily. I wish you sold in black color. Quality is great. Serves the purpose.

icon-circle-checkmark verified purchase
Great warm weather head liner

Love it white for not attracting heat in hot waether. Quick drying material. Wish it has more light colour choices. Gonna get it again

icon-circle-checkmark verified purchase
Hi Hamin,

Thank you for reviewing the Aquafreeze Helmet Liner 700 - White. The liner is great for hot weather. The quick-drying material lowers the temperature by 3 deg C when the water evaporates.

Enjoy your rides!

Cycling Department Joo Koon
Excellent product

This is a “must have” for cycling in Singapore weather. At first I had my doubts, but it really works.

Hi Dexter,

We are glad to hear that you have found our product useful.
The Aquafreeze Helmet Liner 700 - White is designed for cycling in hot weather. As water evaporates from the damp fabric, it lowers the temperature by 30 C.

Cycling Department Joo Koon
Aquafreeze Helmet Liner 700

Perfect. Keeps the Helmet fresh and new whilst protecting the hair.

icon-circle-checkmark verified purchase
Very comfortable under a helmet

I have male pattern baldness and sunblock on your head can run down into your eyes on a hot humid day. Also my helmet leaves lines on my head on long rides. I'm pleased to be able to say that this helmet liner is £4.99 well spent. I used it on a 3 day event in May with rain first thing becoming hot sun later and this helmet liner is very comfortable and protected my head from the sun without needing to apply sunblock. It works for me.

icon-circle-checkmark verified purchase
Good value

I bough two, one for cycling and one for my motorbike both in hot humid Thailand. For the motorbike helmet it helps soak up any sweat so i wash it every evening. It means i don't have to keep washing the helmet lining. For bicycle i haven't noticed any cooling effect (as described in marketing 3 degree reduction), jury is out on that. It does leave a mark on the forehead, hard to avoid.


There was no choice of size and my husband has a large head. It's therefore not a fashion accessory on his head but he has not got sunburnt where he is thinning on top which was the reason for the purchase.

icon-circle-checkmark verified purchase
Decathlons Skullcap

Not quite the Decathlon competitveness on the price front, as when you shopped about better brands were available for cheaper on some sites. Love the cap though and have already used it for hot days to soak the sweat, and cool days instead of the buff to maintain some warmth under the venting.

icon-circle-checkmark verified purchase

cómodo y cálido

icon-circle-checkmark verified purchase

Per mi és imprescindible. Les persones calbes gaudeixen de protecció solar i absorció de la suor amb un teixit excel·lent.

icon-circle-checkmark verified purchase
comodo y fresco cumple su funcion

queda muy bien debajo del casco de ciclismo

icon-circle-checkmark verified purchase
No notas que lo llevas

Estaria bien que lo hubiera en otros colores de tonos claros para el verano. No he tenido la opcasion de probarlo mojado con agua para sentir la experiencia Aquafreeze

icon-circle-checkmark verified purchase

Muy buena, megusta

icon-circle-checkmark verified purchase
muy comodo y transpirable

es perfecto para debajo del casco

Muy cómodo

Se adapta perfectamente, no molesta

icon-circle-checkmark verified purchase
Skip to reviews

Additional Product Information


Main fabric

  • 60% Polyester cationic
  • 40% Polypropylene



Superior quality. Unbeatable prices.

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

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual