The Big Momma Bike Bag is a durable trunk bag with plenty of space! This is a medium rear rack bag from BiKASE that&';s universal and durable. The Big Momma trunk bag has plenty of space for your belongings. Comes with additional side pockets, bungee on top, top inner mesh pocket, key holder, and reflective to make this an all round great bag. Top mesh pocket Side zipper pockets Side and rear reflective accents Handle for easy carry Front and bottom straps to attach the rack Light holder UPC: 859195003514 Specs: Material 600 denier polyester Dimensions 12 x 7 x 7.5 in. Volume 550 cu.in. Made by BiKASE, a family-operated business crafting quality accessories for all types of cyclists. From road purists to e-bike adventurers, BiKASE enhances every ride with well-designed products that add comfort and convenience.