Castelli Estremo WS Black UNI Boné

Winter hat under the helmet. Provides maximum heat and moisture wicking.

• Maximum warmth while allowing vapor to quickly escape
• GORE-TEX INFINIUM™ X-Fast blocks the wind
• Warmer fabric for comfort and warmth
• Covers the lower ears
• Temperature comfort: below 10 °C

GORE-TEX INFINIUM™ WINDSTOPPER®

• Gore-Tex® garments provide total wind protection and maximum breathability. The windproof membrane keeps you from getting cold due to windchill, but the optimum breathability prevents overheating and moisture accumulation by allowing sweat to escape easily. Water repellency is ensured by the DWR treatment applied to the outer fabric.
  

Material composition:

• Main material: 100 % polyester
• Main inner material: 92 % polyester, 8 % elastane
• Lateral inserts: 100 % polyester