The Cocoon GRID-IT! Wrap 11 (Black) is the most intelligent organization tool ever, along with a neoprene sleeve that snuggly holds your 11" MacBook Air and Mac accessories in place. It even stretches to accommodate those bulkier items such as power adapters. GRID-IT! is the most versatile organization system available. With a rubberized woven elastic object retention system for gadget organization, you'll have endless configurations to hold items firmly in place.