This is your new super-durable jacket for BP and warm ups, built from materials that stretch to give you full movement, while dumping heat to help keep you comfortable. UA Storm technology repels water without sacrificing breathability. Durable, stretch-woven fabric is ultra-lightweight & lets you move. 4-way stretch material moves better in every direction. Back vent & underarm mesh panels for added breathability. Side-vent bottom hem. Rip stitch convertible sleeves so you can cut at the elbow seam for a short sleeve. Open hand pockets. Shaped hem. . . 87% Polyester/13% Elastane.