Seen enough flashy embroidery and patches to last you a while? So have we, and the Atomic 4.0 represents Joe Rocket's focus on ride friendly details. Featuring abrasion-resistant RockTex(tm) 600 outer shell, externally adjustable CE Rated shoulder and elbow armor and included a removable spine protector for safety. The Atomic 4.0 also boasts an excellent ability to adjust to your environment with our proven Variable Flow(tm)/Cross-Linked(tm) ventilation system while remaining **100% waterproof **and includes a removable full sleeve liner for those colder rides. For maximum fit, our multi-point SureFit(tm) adjustment system plus 8" jacket to pants zipper attachment ensures that your armor stays in place when you need it most. With a final touch of reflective striping, no detail is missed.