New in bag, never opened! Interlock knit is denser, warmer than ordinary jersey knits Still very light and layerable Ideal for travel, commuting Inseam lengths: Tall 31 1/2" 100% silk. Hand or machine wash. Imported Interlock is more substantial Silk is light, layerable and one of nature’s best insulators. It’s also very breathable, so you won’t overheat once you step inside. Lands’ End® silk is made with an interlock knit, so it’s much denser than ordinary jersey knits. Silk Pants have a brushed elastic waist and rib-knit cuffs. Tags: long underwear, layers, warm, ski, snowboard, winter, leggings, silk