Laptop sleeves can be either an accessory to laptop bags or used in a standalone capacity. They are most often designed to fit snugly to a particular size of computer. They may zip or velcro or simply fold closed, or they may even be open on top. They can be secured inside laptop bags as another effective layer of padding and then pulled out when you’re only carrying your laptop down the hall or to a meeting. Often made of the latest materials to balance protection and bulk, they can be rigid and waterproof, or soft and padded. They are ideal for times when you need to save space and travel light. Some have carrying straps for occasions when mobility may become a factor.