The Explorer B6 Deluxe Large Molle Level 3 Tactical Backpack is a well-made MOLLE pack that will surprise you with its versatility and performance. The small is great for a day trip or quick recon. This enhanced Level III MOLLE compatible assault pack (18 x 10 x 10 Inch) is perfect when you don't want to lug around a full three-day assault pack. With less than half the cubic Inch of our larger assault pack, you will find it is the perfect size for when you want to travel light, such as a one-day or overnight excursion. The medium measures 20 x 11.5 x 11 Inch and the large measures 22 x 14.5 x 9 Inch. Thanks to the many MOLLE compatible attachment points (PALs) you can add additional MOLLE, ALICE or similar pouches if more carrying capacity is needed. For example, this pack has a molded back panel that promotes air circulation to enhance your comfort and sports thick, adjustable shoulder straps that well cushioned for a pack this size. The pack has two main compartments and two large exterior pockets for stowing gear you may need to access in a hurry. It is hydration pouch compatible (bladder sold separately) and has vertical and horizontal compression straps to help hold your gear in place. It also offers an adjustable waist belt and a web carry handle on the top.