Eberlestock Mainframe II

Eberlestock Mainframe II is a heavy-load backpack frame built around a modular platform that stays comfortable when the pack weight starts climbing. The frame is designed for backcountry hunting and professional field use, letting the user configure the system for different missions and seasons.

Updated carry components improve airflow and shift the load more effectively onto the hips, helping reduce shoulder fatigue on long approaches. With multiple attachment options and compression control, it keeps bulky or dense loads pulled in close for steadier movement.

• Updated Mainframe design with a new Cradle Hip Belt, Contour Shoulder Harness and elevated load lifters for improved carry comfort under heavy weight
• Aluminum 90-degree shelf frame with an integrated meat shelf for hauling awkward loads securely
• Micro-adjustable harness with unlimited height adjustment to fine-tune torso fit and load transfer
• Air-mesh padding in the shoulder harness to increase ventilation during high-output movement
• Elevated load lifters to tune pack angle and bring the load closer to the center of gravity
• Cradle Hip Belt with silicon-printed lumbar pad to help prevent slipping and reduce rubbing
• Pull-forward hip-belt tightening with a retention buckle for a firm, stable wrap while moving
• Rear stabilizing straps on the hip belt to limit sway and improve efficiency on uneven terrain
• Side attachment loops plus 20 mm compression straps with auto-locking buckles to cinch heavy loads tight to the core
• Compatible with current Hunt Emod packs and accessories, including Vapor and Brooks packs and add-ons like Scabbard and Batwings