2013 Klim Mojave Jersey (LARGE) (BLACK) Mapped Construction Puts Durable Mesh Panels On Top Sleeve/Shoulder, Tighter Mesh At Front Chest And Back (To Reduce Dirt Penetration) And More Open Ventilating Mesh At Under Sleeve And Side Body To Expel Maximum Heat Open Cell Breathable Foam In Shoulder For Added Comfort While Wearing A Backpack/Hydration Pack Or Chest Protector Non-restrictive open cuff design for non-restrictive fit and maximum air intake Low profile non-restrictive collar for ultimate comfort, breathability and ventilation Raglan design sleeve seams perfectly with new stretch gusset for flexible comfort and optimum fit