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Item # AAS0104

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  • White Panther, 0 ($38.95)
  • White Panther, I ($38.95)
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Item # AAS0104

Say goodbye to sweat in your eyes

We're all in the sweaty skull crowd. After all, the perspiration has to go somewhere. The only debate is how we deal with it. Plenty of us understand the appeal of a cotton cycling cap, but it has its limitations -- the brim is hard to fit under the helmet, and the cotton stays damp after absorbing moisture. When you have to deal with sweat, take a good look at the roboFoil Cap from Assos.

It's a cap designed for both the modern age and modern helmets. It's an ultralight cap made from two different synthetic materials. The cap features an ultra-thin design with taped seams to both minimize volume and to guarantee that the cap won't create any pressure points on the skin. Overall, the construction makes the roboFoil easy and pleasurable to wear under your helmet.

The two bands down the middle of the roboFoil are the lightweight, wicking SPX fabric. The side panels create ventilation, which is why they're made with a wicking polyester mesh.

The Assos roboFoil Cap is available in the color White Panther. Sizes are Assos-specific -- 0, I, and II. Size 0 fits 48-53cm head, Size I fits 53-58cm heads, and Size II fits 58-63cm heads.

Tech Specs

[cap] 55% polypropylene, 36% polyester, 9% elastane
Recommended Use:
summer road cycling
Manufacturer Warranty:
UPF Rating:
one size fits most

Size chart


Men's Apparel
Leg & Knee Warmers 0 I II
Height 4ft 11in - 5ft 2in
(150 - 159cm)
5ft 3in - 5ft 6in
(160 - 169cm)
5ft 7in - 5ft 10in
(170 - 179cm)
5ft 11in - 6ft 1in
(180 - 185cm)
6ft 1in - 6ft 3in
(186 - 190cm)
6ft 3in - 6ft 5in+
(191 - 195cm+)
XLG but wider
Arm Warmers 0 I II
Chest 35.4in
46.5+ in
How to Measure:
For best results, take measurements over your underwear.
Measure around the widest part of your chest.

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Assos roboFoil Cap

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Here's what others have to say...

3 5

Okay, but could be better.

  • Familiarity: I've used it several times

I need a skull cap for two things: Keep the sweat out of my eyes and keep the UV rays off of my head. I thought this Assos roboFoil cap with its 50+SPF material was just what I was looking for except for the fact that it does not cover the tops of my ears. In actual use on some 100 degree days here in the Santa Cruz, CA mountains about 2-3 hours into my rides I'd get sweat stinging my eyes. Not that big a deal unless I accidentally wipe some sunscreen into my eyes while trying to clear the sweat! I also don't like the placement of their logo button as my helmet rests against it. It gives me an uncomfortable "third eye" on my forehead. Why not move that logo button in front of one of the ears?
I bought two and I'm sure they'll work fine for me 80% of the time but I'll also be buying replacements for my threadbare Bontrager SPF skullcaps for the really hot days.

Avg. ride time: 26h 22m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
5 5

Keeps your head dry and cool

  • Familiarity: I've put it through the wringer

This thing soaks up all the moisture from your head. I am bald and I have never had any sweat run down my face. Other caps make you feel like you are wearing a plastic bag on your head. This one you will forget you are wearing.

Avg. ride time: 13h 46m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
5 5

just fabulous

  • Familiarity: I've used it several times

fitds like a glove..just perfect like most Assos gear

4 5


  • Familiarity: I've used it once or twice and have initial impressions

I've never got great use out of my Oakley glasses - they always end up sweat stained through the ride when things get down and dirty. A cap (I like the Rapha ones) seemed to hold back the sweat a bit.

Used it last weekend including a 17km mountain ascent - I still wasn't dripping by the top!

After 5 hours it was still wicking, very impressive.

Avg. ride time: 5h 28m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
5 5

love it

  • Familiarity: I've put it through the wringer

I got this hat while ago , and since day one , I loved it ! I wear it all year long , from cold spring tru late fall. It is very cool addition . If you , like me , like long rides , what I found out is , that , helmet with this hat feels very comfortable. Feels like , u not actually wearing a helmet. It protects your head from sun , wind , light rain , and of course , very stylish. Very durable. Easy to wash.

love it
Responded on

Does the stitching bother you at all? I am a little concerned about the stitching that goes all around the seam.



Responded on

Recently got this beanie, and am really liking it. The stitching doesn't seem to bother me (I was afraid it would), but the little LOGO BUTTON in front did! My helmet presses against it and is uncomfortable. SO? I just wear it backwards. Problem solved.
I have no idea how this works, but I've been wearing it in VERY hot weather, and I take it off and somehow my hair is DRY where the beanie was, and wet around the edges. Amazing. Finally found the solution to helmet head!