ULA Equipment Catalyst

The ULA Equipment Catalyst is a 75-liter pack built around aluminum stays, giving it a proper internal frame rather than the frameless design used on ULA's lighter models. The fabric is 400D Robic nylon with a PFAS-free C0 DWR finish, main access is through a roll-top closure, and at 1259 g the pack works out to 16.8 g per liter — higher than ULA's frameless models, but expected given the volume and carry capacity on offer. Features include a padded hipbelt with pockets, load lifters, a chest strap, one ice axe loop, side-only compression straps, and hydration bladder compatibility. The brand backs it with a 99-year warranty, pointing to a build meant for long-term durability. At 75 liters with an aluminum frame, the Catalyst sits closer to a classic trekking pack than a pure ultralight build — suited to multi-day trips with heavier loads, extended food supplies, or winter gear, where a frameless pack's lower carry capacity would fall short.