The OpTech Soft Pouch-Computer Sleeve 15 (Steel) is a neoprene sleeve made to protect a 15 laptop computer on its own, or in a briefcase. The sleeve protects against dust, moisture and impact. It will also stretch to fit cables and power supplies. The slim design fits easily into a briefcase, book bag or mail carrier bag. The flap secures with a touch fastener, so there's no fumbling with zippers that can break or malfunction.