As the name suggests, the Rab Pacer Jacket is designed for running, specifically on the mountains or fells where you may need full protection from driving rain. 13 denier Gore-Tex Active fabric is light and highly breathable, plus open underarm vents allow your steam to escape. The pacer is a clean cut, simple jacket, with trim elasticated cuffs, and elasticated hood with a stiffened peak and a single chest pocket. Pacer Jacket - Men's Waterproof