Run in the cold with the Jackrabbit Speed Squad ¼ Zip. This long sleeve shirt is perfect to wear as a warm up piece, by itself during a run, or layered under a vest or jacket. Not only is it super soft and comfortable, but it also wicks moisture away to keep you warm and dry. Plus, it has thumbholes—enough said. Enjoy your next workout in the Jackrabbit Speed Squad ¼ Zip. Looking for other cold weather running apparel? Check out our guide on the best winter running apparel.