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A thoroughly modern take on a traditional-looking piece. We use a merino wool layer over a polyester jersey liner — the wool provides insulation and pulls the moisture away from the skin. The forehead and earflap are double layered for warmth, while the cap is thin enough to comfortably fit under your helmet. - Traditional style with technical construction - Merino wool/polyester mix outer layer with thin jersey liner over ears and forehead - Reinforced visor - Reflective detailing

- Traditional-look cycling cap - 100% polyester performance fabric for maximum wicking - Sublimated graphic

Lightweight Coverage for the Hottest Rides When the temps soar, the Castelli Climber’s A/C Cap keeps your head cool and protected without weighing you down. Designed to fit perfectly under a helmet, this ultralight cap is your go-to for summer rides when breathability is everything. Open-cell mesh fabric for maximum airflow and quick drying Lightweight construction that disappears under your helmet Classic cap style with a cycling-specific fit Sweat-wicking performance keeps moisture out of your eyes Whether you're climbing switchbacks or cruising through summer heat, the Climber’s A/C Cap helps you stay focused, cool, and covered. Fit: One size fits most Style Tip: Flip the brim up or down—your call.

- Polyester stretch fabric on front for great wicking - Stretch mesh back

Here's your traditional cotton cycling cap done right. The fabric is piece dyed for a rich depth of color that won't degrade after a few washes. It has a center stripe as tradition dictates, but in a tasteful tone-on-tone coloring. A small scorpion and castelli wordmark on the side show that you know your cycling heritage. - Traditional cycling cap - Piece-dyed cotton twill fabric - Tone-on-tone webbing stripe - Discreet endurance logoing

- Thermoflex fleece fabric is warm, stretchy, and soft - Single-piece construction with flat-lock seams - Embossed Castelli wordmark logos - Dual-sided silicone gripper elastic at top prevents sliding down

The cap for hot days, to keep the sun from coming through the vents in your helmet while still keeping you cool. - Highly ventilated mesh - One size fits all - Light weight

Unexpected warmth in a thin, comfortable layer to keep your ears and forehead warm on cool days. - Merino wool/polyester mix outer layer with jersey inner layer to move moisture away from the skin - Reduced seaming for comfort - Contoured to cover ears

- Thermoflex fleece fabric is warm, stretchy, and soft - Single-piece construction with flat-lock seams - Embossed Castelli wordmark logos - Dual-sided silicone gripper elastic at top prevents sliding down

Ride in the same knee warmers as Team Ineos! PRODUCT FEATURES - 10°-20 °C / 50°-98°F - Weight:52 g