I bought this, but want the bigger be. The Allpa pack has transformed into a burly roller that puts four-wheeled bags to shame on cobbled streets, dirt roads, and stairs. Made from durable, water-resistant polyester and lightweight yet strong ballistic nylon paneling, This Allpa bag is made with 100% recycled fabrics sourced from pre-consumer waste. 38L (cu in) 22 x 14 x 12 in (56 x 36 x 30cm) 6lb 14 oz (3.1 kg) Main body: 100% recycled 840D, TPU-coated nylon Secondary body: 100% recycled 840D ballistic, ripstop nylon Lining: 100% recycled ripstop polyester