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.