The 42 Liter capacity LeisonTac JYB-255 Tactical Pack is the perfect bag with updated and reinforced designs. Constructed of durable and water resistant high density fabric, wear-resisting. Reinforced triple nylon thread stitching enormously enhanced the bearing ability, which meets military ISO standard. The bag is light yet sturdy, with 4 main storage compartments with paracord zipper pulls that eliminate noise while on the go. Waterproof and rainproof design for the zipper cover. Featuring a plethora of internal storage organizers that keep everything where you need it and easy to find. For those needing to carry their laptop, it accommodates most models up to 17 inches. An internal hydration bladder compartment (Bladder not included - will accept a 2-3L bladder) with drinking tube access port allow you to stay hydrated while on the move without needing to pull a drink out of the pack. The top of the bag features a heavy duty reinforced carry handle when wearing the pack is not an option. With a generous amount of standard PALS MOLLE and hook&loop on the pack you can customize your extra storage needs by adding extra pouches where you need them. Multi-layer MOLLE systems for displaying your favorite morale patches (We even include a subdued American Flag patch for you!). For comfort the shoulder straps are lined with aeromesh, and can be secured and stabilized with the included sternum strap.The side pocket is a new designed function for inserting phones or water bottle. A comfortable lumbar fixation system has been added and is removable. Perfect for the student, hunter, fisherman, outdoor enthusiast of military person, you won't be disappointed with this bag. Size Approx. 18.1''x 10'' x 9.60''