Safely machine wash your silks, linens, wools, cashmere and other fine fabrics. Use Small 12x15 inch size for boxers, blouses, shirts, scarves, lingerie, underwear, legwear, etc. Made in U.S.A. using a super fine, high-tech mesh fabric with nano fibers and a patented lock. Our specially made super-fine mesh material is far less porous than standard lingerie wash bags. Made by Royal Silk, selling high-quality affordable silks since 1978. 100% Guarantee.