The Arcteryx Breva vest guards the heat in your core as you grit your teeth, reach, and pull your way to the next hold. Quick-drying, moisture-wicking Polartec Classic 100 fleece keeps you warm natural stretch increases comfort. Knit mesh side panels complement your movements and increase breathability. Soft brushed collar offers a chafe-free fit athletic fit is designed to move with you. Rear zippered pocket stashes gels, carabiners and other small accessories. Elastic waist helps keep vest in place as you move. Compressible vest stores in its own rear pocket.