Gregory Stout 45 Review (2026): The Budget Backpacking Pack

Why you should trust this review

I have been reviewing backpacking packs and outdoor gear for six years, and I bought this Gregory Stout 45 at retail in July 2025 in size M/L. Gregory did not provide a sample and did not know I was writing this. Over the past ten months I have logged 320 km of overnight and weekend backpacking with it, across the Sierra Nevada, the Olympic Peninsula, and a four-day hut-to-hut trip in the Italian Dolomites. That is a genuine mix of terrain, weather, and load, and it is what the assessment below is built on.

To keep the comparison honest I carried the Stout 45 against the pricier Gregory Baltoro 65, the similarly priced Osprey Rook 65, and a generic budget pack under matched loads. Every comfort, load-transfer, and weather judgment comes from my own packed weight on my own trips, not from manufacturer copy. The full protocol is on our methodology page, and I will be specific about the one place this pack let me down.

How we evaluated

For comfort I ran two-night trips with 11 to 13 kg loads and scored the pack across the 14 km hike-in and the 14 km hike-out, when fatigue actually shows. For load transfer I loaded it to 13 kg and scored shoulder-versus-hip distribution under repeated 400 m climbs. I tested the FreeFloat hip belt swivel specifically on side-hill traverses over 8 km of mixed terrain, because that is where a swiveling belt either earns its keep or does not.

For weather I put it through a 90-minute steady rain hike with the included cover deployed, plus a 30-minute drizzle without the cover, so I could see both the pack’s bare water resistance and how well the cover compensates. And I tracked durability across the full 320 km, the zippers, frame flex, hip belt padding, and bottom-panel abrasion. Everything below is the result of that field testing.

Comfort and load transfer: the FreeFloat story

The FreeFloat hip belt is the reason to buy this pack, and it is not marketing fluff. The belt swivels with each stride, which decouples your hip rotation from the pack body, so on side-hill traverses and rocky descents the pack tracks your hips instead of lifting off your back and throwing off your balance. After 320 km, this is the single feature that makes the Stout 45 ride closer to a far pricier Baltoro 65 than to other packs in its tier. On uneven terrain you feel the difference immediately.

Up to 13 kg the load rides on the hips and the shoulders feel genuinely light, which is the whole point of a framed pack and exactly what a budget pack usually fails to deliver. The honest ceiling is that load. Push past 13 kg and the pack starts to feel undersized and the comfort margin shrinks, so this is a pack for lightweight overnight kits, not heavy multi-day hauls. Within its intended weight range, though, the suspension is the standout.

Capacity and organization: 45 liters is enough for two nights

Forty-five liters sounds tight until you pack modern gear into it. With an ultralight shelter around 1.2 kg, a 30-degree quilt at 0.7 kg, an inflatable pad, a compact stove, two days of food, and water, my base load lands near 9 kg with room to spare. Add a third day of food and a heavier shelter and I can reach 13 kg, which is the top of the pack’s happy range. For one-to-two-night trips with current lightweight gear, the capacity is genuinely sufficient, and the compression straps cinch a half-empty pack flat so it never flops around when you are carrying less.

The sleeping bag compartment with its internal divider keeps the bag separate from the main load, which speeds up camp setup, and the dual side bottle pockets fit a 1L Nalgene plus a Sawyer Squeeze filter cleanly, a small thing that matters more than you would expect on trail. The one organization gripe is the top lid pocket, which is small for a stove, pot, and food bag combined, so plan to stash some of that in the main body.

Build and weather resistance: the rain caveat

After 320 km the 210D recycled nylon body shows scuff marks at the bottom corners but no abrasion through-wear, the frame stays square, and the hip belt padding has held its shape. This is a durable pack that I expect to last many more seasons, backed by Gregory’s lifetime warranty, which matches Osprey’s at a comparable price and is a real point in its favor against budget no-name packs.

The one genuine weakness is weather. In my 90-minute steady rain test, the sleeping bag compartment zipper is exposed and water got in around it, which is exactly the kind of failure you do not want over a down sleeping bag. The fix is the rain cover, which Gregory includes in the bottom pocket, and with the cover deployed the pack stayed dry inside through the full 90 minutes. So the pack is weatherproof in practice, but only if you deploy the cover, and you cannot rely on the bare pack in a hard rain. Pack a dry sack for your bag and deploy the cover early, and this stops being a problem.

Who should buy the Gregory Stout 45?

Buy this if you backpack one to three nights with modern lightweight gear, if you carry up to 13 kg and do not want to spend up for a Baltoro, and if you want adjustable torso fit and a real swiveling hip belt that shines on uneven terrain. With its two body sizes covering 14 to 22 inch torsos, it fits a wide range of hikers, and the lifetime warranty makes it a low-risk buy.

Skip this if you backpack five or more nights or carry traditional heavy gear, where the Stout 70 or a Baltoro 65 is the better fit, if you count ounces, since at 1.4 kg it is heavier than ultralight 45L peers, or if you need carry-on legal dimensions, because at 70 cm tall it exceeds the limit for major US carriers.

The verdict

After ten months and 320 km, the Stout 45 has earned its value-pick status. The FreeFloat suspension genuinely punches above its price, carrying 13 kg loads with the comfort I expect from packs that cost considerably more, and the durability and lifetime warranty make it a safe long-term buy. The exposed sleeping-bag-compartment zipper is the one real flaw, and the answer is simply to deploy the included rain cover early. For the weekend backpacker with lightweight gear who wants Baltoro-adjacent comfort without the Baltoro outlay, the Gregory Stout 45 is the pack I recommend.