Velodrom Ventura glasses is a slim "biker-style" model. The nose opening is narrower than many other models’; so Ventura shuts out the wind and dust for bikers with a small or narrow nose. An excellent fit for many female riders. The secret is a unique combination of functional design and careful selection of materials. Frames are made of Grilamid TR90; a flexible material which is strong enough to withstand unbelievable harsh treatment. Lenses are polycarbonate and available in three colors. Try them and your bike ride will never be the same.