Specifications:MP20(20L)Dimensions45cm x 27cmx 15cm /17.7" x 10.6"x 5.9"Capacity20L/ 1,220 cu inWeightApprox.1,400g / 3.1lbsMP25(25L)Dimensions50cm x 27cmx 17cm / 19.7"x 10.6"x6.7”Capacity25L / 1 ,526 cuinWeightApprox.1,500g / 3.3lbsMP30(30L)Dimensions58cm x 27cmx 17cm / 22.8"x 10.6"x 6.7"Aux Compartment33cm x 25cmx 6cm/ 13.0"x9.8"x 2.4"Capacity30L / 1,831 cuinWeightApprox.1,600g / 3.5lbsFeatures:- Designed for long-duration and long-distance operations- Excellent and flexible carrying capability in harsh environments- Wearproof and water resistant 500D Nylon fabric- 30L main compartment with full opening- Laser cut MOLLE System for modular extensions- Interior design with combination of loop surface and MOLLE System- Outstanding carrying system increases the ergonomic comfort- Innovative dual duct channel design for the drink tube /charging cable on top of both sides- Premium YKK zippers- UTX Duraflex buckles- Optional inner and outside modules availablePackage included:1 x Tactical Bag