Featuring hardy, double-knit fabric and plenty of stretch, the RELENTR(TM) Shirt-Jac provides durable comfort and warmth that wears like your favorite sweater. Our versatile button-up delivers a sleek, modern look that effortlessly adapts to any adventure. Complete with chest, handwarmer, and interior drop-in pockets. Crafted without compromise and ready when you are. Heavy, Double Knit Fabric With Structure and Stretch Heavyweight | 290 GSM Thick, double-knit fabric provides stretch, structure, and comfort Durable Material- Cotton and Polyester Care Instructions Machine wash cold inside out, normal cycle with like colors Do not bleach No softener Lay flat to dry or line dry Iron low temp, no steam Do not dry clean