Castelli Estremo WS Skully Cap 2026 Black

The Castelli Estremo WS Skully 2026 winter cap is a windproof skull cap to wear under your helmet on cold rides. Ideal if you ride in windy, damp conditions and want to keep your head and ears warm.

• Blocks wind across the forehead and sides with Windstopper X-Fast panels
• Repels light moisture thanks to the water-repellent finish on the front and side panels
• Warmer fabric at the back keeps the nape of your neck warm
• Covers the lower part of your ears with soft, fold-up ear flaps
• One size, available in Black

Technical specifications

• Outer material: 100% polyester
• Inner lining: 92% polyester, 8% elastane
• Front and side panels: Windstopper X-Fast with water-repellent finish
• Rear panel: Warmer fabric
• Ear coverage: Lower part of the ears, soft fold-up ear flaps
• Size: One size
• Colour: Black
• Supplier code (MPN): 4515552-010-UNI

Castelli’s roots lie in Vittore Gianni’s tailoring shop, founded in Milan in 1876; Maurizio Castelli created the scorpion brand in 1974. Today it is based in Fonzaso and makes clothing for your rides, from jerseys to shorts. In 1977 it introduced aerodynamic Lycra shorts, used in racing and sold to the public.