The C9 Cap is built for activities where a standard baseball cap would feel excessive. Constructed from C9 Ripstop fabric — an ultralight, highly breathable 100% recycled and recyclable polyester — it offers genuine wind and water resistance while drying rapidly. A biobased DWR treatment, free from PFAS and harmful chemicals, adds weather protection without compromising the featherlight feel. The slim fit and adjustable back closure keep it secure across running, hiking, kayaking, and water sports.
C9 Ripstop fabric: 100% recycled and recyclable polyester
Biobased DWR finish, PFAS-free
Wind and water resistant
Ultralight at 40g
Quick-drying construction
Slim fit with adjustable back closure
Fabric produced in Japan, garment made in Estonia
Returnable for recycling through Houdini stores and retailers
