Olympia Moto Sports Men's Ranger Vent Tech Jacket (Fatigue Grey/Black, Medium) Outer shell constructed in 500 and 2000 denier Cordura fabric Waterproof/breathable membrane adds double waterproof protection Thermolite insulated liner jacket Airflow Ventilation System at chest, arms and back Velcro lock down torso straps at chest pocket vents create adjustable air flow