The durable, full-featured, multi-day Thunder offers convenient dual access set on an ultralight suspension system. It combines top-loading simplicity with the organizational ease of a panel loader. And while Thunder's low total weight makes it an ultralight, it's load-bearing capacity remains high. Main compartment access is unsurpassed with both top and panel loading options. As a top-loader, Thunder is opened through the double-drawcorded and skirted top under a fully extendable and removable floating lid. In this mode, the pack expands upward to accommodate bulky, oversized loads.  Volume: 70 l Size (closed): 84 × 36 × 29 cm Weight: 1 600 g Backlength: adjustable Backlength range: 41 - 58 cm Hipbelt range: 87 - 145 cm Load Limit: 24 kg Water Resistance: Water-repellent