The primary base platform for the EMOD™ system with a constantly growing number of accessories. Build it up to be a multi-day expedition pack, or go in light so you can come out heavy. Tested to hold more than 1300 lbs., this ultra-rugged frame utilizes top of the line zippers to allow the attachment of a variety of packs and accessories to fit any backcountry hunt. The Mainframe™ is fully adjustable and completely user configurable with endless combinations. REGULAR PRODUCT SPECS Weight: 4 lbs 5 oz Dimensions: 26"h x 11"w TALL PRODUCT SPECS Weight: 4 lbs 8 oz Dimensions: 29.5" x 11"w PRODUCT FEATURES Built-in Grapple compression straps Zippered attachment points MOLLE webbing matrix on main panel Adjustable ladder harness system F1T (TALL VERSION) PRODUCT FEATURES Tall version is 3.5" taller than the regular size Designed for those with torso lengths measuring 19 inches or longer Tall Mainframe is compatible with the same accessories and packs as regular Mainframe