Riho Thickening Dedicated Lingerie Wash Bag for Washing Machine(Set of 3) 1.Professional bra laundry bag, including two cylindrical, one triangular. 2.Excellent double wash bag,coarse mesh outside and fine mesh inside design,make use of the water hedge and prevent dandar effectively. 3.Breathable fabric and compact structure,it helps to reduce the growth of bacteria when drying. 4.Plastic ring support. Both sides of cylinder laundry bag and the bottom of triangle laundry bag with a plastic ring make the lingerie wash bag pliable,elastic and not easy to crack.