H2Oproof and breathable, the Arc'teryx Boys's Sigma AR Mitt features aggressive articulation for unparalleled digital dexterity and supple leather to reinforce high wear zones. These warm mitts are Built with GORE-TEX XCR technology and are insulated with Primaloft One and a layer of Polartec fleece. Windproof, insulated and durable, the Arc'teryx Sigma AR Mitts for men can stand up to all of your mountain pursuits.