Polyester PROTECT YOUR DELICATES - Protect your fine clothing from damage, excessive wear, snags and tears during washing, drying; Extend garment life and save the cost of replacing expensive clothes. THOROUGH CLEANING & RINSING - These Premium Quality Laundry Wash Bags offer superior protection for lingerie, leggings, fringe, lace, sweaters, and other fine washables. Fine weave mesh allows detergent in while keeping anything out that may harm your delicates. The zipper closure keeps the bag closed and secures your garments safely inside. SPECIALLY DESIGNED BRA SAVER BAGS - Bra Wash Bags are made of double-layered sandwich material for extra protection and features reinforced support rings to keep the bag supported and held in shape during laundry. SUPERIOR MATERIALS & DURABLE CONSTRUCTION - These Deluxe Wash Bags are made of highest quality 150gm ultra-fine mesh polyester material making it both silky soft and very durable. The bags also feature double stitched seams for extra durability.BESSKY