- Comes with RIEN's cotton dust bag - 5-10 business days to ship depending on availability. This season "must have" bag! RIEN's waist pochette, part of our "zipper collection" combines waist bag trend with a luxury touch. Wear it with a dress for a night out look or as a belt for your coat to go shopping. It is a must-have in hands-free style with enough room for all small night-out accessories. The detachable waist strap makes this bag versatile so as to have it in your bag for more essentials things to carry.