Borrowing 30K Eco Vortex 100% recycled outerwear fabric from our Beast Series, the Beast 3L cap is a lightweight, weather resistant, breathable cap for active endeavors. Constructed from Eco Vortex 3L, the bill, top and front panels will fight off a drizzle or dusting of snow, while the durable mesh side panels keep the air moving freely during aerobic activity or heavy chilling. Adjustable low profile ladder lock clip at rear assures a perfect fit.