90% Polyester/10% Spandex construction is both lightweight and durable 90% Polyester/10% Spandex construction is both lightweight and durable Redesigned knee zone features a slimmer profile without inhibiting protection while permitting improved articulation for better movement and pedaling capabilities Optimized rear mesh panels along the calves improve range of motion while increasing ventilation Increased resistance to chain abrasion through sonic welded thermo skin applied to the lower right inside ankle