An expansion gusset lets this sling grow to fit an extra jacket (or a couple of bottles of wine), and then self compress when the load is lighter. There’s plenty of organization, including a quick-access front pocket with key clip, internal soft-lined pouch, slip pockets, pop pockets and mesh zip pockets. The zipper opens from both ends, creating an ultra wide opening that lets you see and grab everything, without rummaging. And the comfortable, adjustable shoulder strap can be detached from either end, for easy access no matter how you wear the sling. This sling is made with durable, water-resistant ripstop nylon, made from 100% recycled industrial nylon offcuts. Sling measures 12.6 inches x 7 inches x 4.7 inches / 320mm x 180mm x 120mm; strap measures minimum 36 inches / 92cm and maximum 62 inches / 150cm...reasonable offers accepted...message me for any questions. Bellroy Venture Sling Travel Bag Hiking Crossbody School Everyday Crossbody Leisure Wear Essential Carry All Sling Unisex