Distance efforts and rigorous training routines call for a form fitting jersey that's comfortable in widely variable conditions and highly reflective for late evening rides. Hitting all these key components, the Gore Bike Wear Men's XENON 2. 0 S Jersey brings together a highly functional matrix of ultra light, breathable fabrics, with ample storage for fueling longer rides and brilliant visibility after dark. Super thin fabric along the body fits tightly, much like a second skin. Not only does this reduce drag when you're pushing along at higher cadence, but it also combats perspiration build up, especially considering its strategically placed mesh ventilation. Ultrasonic welded seams allow for a smooth on skin feel without the friction of bulkier seams. Bonded construction along the edges and hem reduces excess weight for the lightest possible feel on the road. The three compartment rear pocket tapers along the sides for easier access to energy gels, substantial snacks, and other riding accessories. Also, the jersey's rear sports a zippered pocket that's great for tossing essentials, such as your cash, keys, and phone. The semi locking front zipper helps to ventilate your upper body, securing in place without migrating when it's partially unzipped. Ergonomically shaped, the collar comfortably hugs your neckline without digging in or restricting your ability to move. And because you'll be training rigorously at all hours, the reflective print along the sides, sleeves, and backside significantly boosts overall visibility at dawn and dusk hours.