The C9 Cap is built for activities where a standard baseball cap would feel too heavy or restrictive. Constructed from C9 Ripstop — an ultralight, highly breathable 100% recycled and recyclable polyester — it offers wind and water resistance alongside rapid moisture evacuation. A biobased durable water repellent finish, free from PFAS and toxic chemicals, keeps the fabric performing in variable conditions. The slim, adjustable fit suits running, hiking, kayaking, and water sports where a low-profile cap is essential.
C9 Ripstop fabric: 100% recycled and recyclable polyester
PFAS-free biobased durable water repellent (DWR) treatment
Wind- and water-resistant construction
Weighs 40g
Slim fit with adjustable back closure
Quick-drying and highly breathable
Fabric produced in Japan; garment made in Estonia
Recyclable at end of life — returnable to Houdini stores
