Joe Rocket Atomic 4.0 Jacket Rock Tex™ 600 outer shell 100% WATERPROOF C.E. rated protectors in shoulders and elbows Removable spine pad with pocket for optional C.E. spine protector Variable Flow™ ventilation system with waterproof zippers Cross Linked Ventilation™ With Wind Tunnel Cooling Patent Pending Sure Fit™ adjustable waistband Elastic Sleeve Adjusters Snap Loops For Attaching Jacket to Belt Removable insulated full sleeve liner Reflective stripe 4XL - 5XL available in Black only