Yes, even sleeves can be a burden when it's scorching hot out and you've got 30 km left before you can call it a day. The Gore Bike Wear Xenon 2. 0 Singlet provides relief on those days when the thermometer says 'whoa,' but your legs say 'go.' Large mesh inserts and a full length zip provide all the ventilation you could ask for. The nylonelastane constructed Xenon 2. 0 Singlet comes in a tight, ergonomic fit. The semi locking design of the zipper ensures that the slider won't move on its own. An elastic gripper on the lower hem keeps the jersey from riding up when you're in an aerodynamic position. Stash your gear and gel packs in the three compartment back pocket that tapers on the sides so you don't have to work too hard to get to your mid ride fuel. A reflective front logo and reflective piping on the front and back ensure that you'll be visible, even when the sun retreats from your relentless onslaught. The Gore Bike Wear Xenon 2. 0 Singlet comes in sizes Small through XX Large. It's available in four color options: Blackwhite, Pool Bluewhite, Redwhite, and White.