Light, cool and awesome looking! The 4.0 jersey is the premium race jersey, made from ultra-light, stretch mesh fabric that is MoistureCool wicking and has air channels. The tailored race fit stretch material can be worn with or without body armor and of course, is neck brace ready! The elbows of the jersey are reinforced with Brush Guards, an ultra-thin flex film that is feather-light and increases scratch and abrasion resistance properties. Welded seams at the cuff and hem provide maximum comfort and fit. So just point the bike down the trail and stay loose!Ultra-light, race tight fit | Mesh fabric with air channels for superior ventilation Racing stretch fit for riding with or without body armor Stain-resistant fabric coating Brush Guard reinforcement on elbows Welded seams at cuff and hem for maximum comfort Collar design for use with or without a neck brace Two side pockets Rear reflective detail Size: XS-XL