The Tifosi Optics Alliant Sunglasses are defined by sleek angles and premium materials. They are made of Grilamid TR-90, a homopolyamide nylon characterized by an extremely high alternative bending strength, low density, and high resistance to chemical and UV damage. Vented lenses improve airflow while the adjustable ear and nose pads of hydrophilic rubber increase grip as you sweat ensuring a perfect, stable fit. The Tifosi Optics Alliant Sunglasses are perfect for cyclists, runners, and endurance athletes.