There are cold, windy days. There are hot days. Then there are those weird hybrid days when Mother Nature can't seem to make up her mind ? the sun is shining bright but you're getting sucker-punched by cold wind gusts while barreling down a harrowing descent. The Gore Bike Wear Ozon WS Short-Sleeve Jersey gives you the windproof protection of WINDSTOPPER fabric when a jacket or long-sleeve jersey would be overkill.Ever found yourself on a ride thinking, 'I checked the weather report?it's 70 degrees out today. Why am I still cold?' The culprit could be the windchill. When wind permeates your clothing, it gets into the space between the fabric and your skin. And most of the time, it destroys the natural, body-produced warmth that's trapped there. So you feel colder than you should.The Ozon WS Short-Sleeve Jersey is tight-fitting. It's windproof in the front, as well as in the kidney and shoulder areas. But because you may want to ventilate when the wind dies down, it offers a full front zip with a semi-locking design that will keep the zipper in place. A long back and elastic gripper on the lower hem ensure that the jersey won't ride up when you're in an aerodynamic position. Flat-lock seams glide friction-free over your skin. Stash your mid-ride fuel in two side mesh pockets, and your gear in the two-compartment back pocket. There's also a small key pocket in back. Reflective piping on the front and back as well as a reflective front logo ensure that you'll be seen in low-light conditions.The Gore Bike Wear WS Short-Sleeve Jersey comes in sizes Small through XX-Large and in three color options: Black/white, Black/red, and Black.