Dri Release Wool Gives You The Best Of Both Worlds The Ease Of Care Of A Synthetic And The Aesthetics Of A Natural Fiber. Machine Washable And Dryable. Wool Absorbs And Evaporates Moisture So It Never Feels Clammy Or Sticky Against The Skin. Dri Release Wool Has Also Proven To Have Greater Thermal Properties Than Other Wool Blends.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }