Trousers in windproof, waterproof and breathable ripstop fabric with fully taped seams for total protection against moisture. A mesh lining promotes better evaporation (Waterproof 10,000, Breathable MVP 4,000). The side zip means they can be worn over another pair of trousers if required and then placed in your backpack or under your bike seat if conditions change, using the handy pouch included. A velcro panel at the ankle can be used to adjust the fit.