The ALPINESTARS T-SP R Drystar Pants offer the ultimate in racing and sport leather pants. They are waterproof and feature a breathable Drystar membrane. These pants include a removable thermal liner with 100g insulation, stretch inserts, and direct ventilation openings on the thighs. The T-SP R Drystar pants are made from a 600D poly-fabric construction with stretch softshell inserts and 450D poly-fabric inserts on the thighs and shins. In addition to an ergonomic ankle construction, the pants come equipped with DFS Lite knee sliders and movable CE Level 1 GP knee and shin protectors. They are CE certified to Category II EN 17092-4:2020 Class A standards.