The Outdoor Designs Stretch-On glove liners are a close fitting, durable and quick drying multi function stretch glove. Made with DuPont Thermolite Base fibers knit is one piece seamless construction. Elasticatized ribbed cuffs seal the wrists. Low bulk aids layering and packing. Can be worn alone in cool conditions or used as a glove liner. Sizing (Circumference around the knuckles): Small-7 1/2", Medium- 8", Large- 8 1/2", X-Large-9".