Sometimes you pull on a pair of jeans for the first time in months and find a twenty-dollar bill in the back pocket. Sweet. The Ground Diabase Bag is kinda like that. It doesnt have bills in the pockets, but when you open this messenger bag, youll realize theres a padded, removable computer brief on the inside. The brief fits most 15-inch laptops for quick trips to the coffee shop, and the Diabase bag organizes your pens, MP3, wallet, and ticket for travel.