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On-One Seamless Skull Cap On-One Seamless Skull Cap

Designed specifically to be worn under cycle helmets. Super thin and light thanks to its hollow core prolen construction.

The On-One seamless skull cap, works perfectly in all climatic conditions. Keeping you warm in extreme cold, and cool in the summer, thanks to its prolen dryfast properties that wicks the bodys moisture and perspiration away from the skin.


  • Fit: Ergofit: Seamless tubular knit. Lightweight design, non visible through your outer layer
  • Odour Resist: Siltex prolen: antibacterial protection against funghi and bad smells
  • Protection: UV-X protect: prolen sunprotect, Protects from UV radiation
  • Fast Drying: Prolen Dryfast: Higher drying speed, more effective moisture transportation
  • Conditions: Cool and warm conditions
  • Comfort: Seamless construction minimises chafing.

Why use a base layer or seamless under garment?
We highly recommend that riders of all levels wear a base layer in all conditions. Our vast range of base layers are specifically designed and professionally tested to fulfill bodily comfort and performance needs at all times.

Base layers in summer?
Yes! A base layer is also necessary in the summer heat!

Our highly technical, seamless base layers are not just to keep you warm in the cold winter months. Even in the hottest of conditions, a base layer plays a very important role in comfort and performance.

Our seamless layers have a strong wicking capacity, drawing moisture away from your body, preventing sweat from building up on your skin.

Additional Information

From £5.99



Black / One Size
Lots in stock £5.99