A lite version of of the top-selling Little America backpack. The Retreat backpack is slightly smaller and has a slip pocket instead of an extra compartment on the front. Great simple design at a great price! Herschel Supllies Retreat backpack is fully lined with the signature striped coated cotton-poly fabric and the main compartment includes a 15" laptop sleeve pocket plus a small media pocket.áThe main compartment has pullover magnetic closures with synthetic leather detailing for the classic mountaineering backpack look. Adjustable ergonomic padded shoulder straps. Body: 100% Polyester, lining: 100% Polyester, trim: 100% Polyurethane. 19.5 Litre.