Unisex arm warmers offer added warmth and comfort as well as a practical solution for concealing body art. Made in a soft, stretchy knit, these sleeves are the perfect solution to those cold offices and they are easy to remove and store away when you warm up. Additional features: Silicone grippers at top of sleeve holds arm warmers in place, thumbholes provide extra warmth. Size 1: 20" length, fits 9"-12" biceps. Size 2: 22" length, fits 12 1/2" - 15 1/2" biceps.