Osprey Renn 50 Review: Miles of Real Trail Use

This spring I finally admitted my old backpacking pack was done. The frame still worked, but the hipbelt sat wrong after a few miles and the whole thing rode like a suitcase strapped to a fence post. I am 59 years old, my left knee complains on long descents, and I have about thirty years of hiking behind me. I did not want a pack that looked good in a store. I wanted one that would still feel right at mile eight on day two. The Osprey Renn 50 is what I settled on, and after four overnight trips this season, here is the honest report.

I bought the Renn 50 in the first week of April after trying it on twice at the outfitter and once more at home with a load of books in it. The AirSpeed suspension has a tensioned backpanel that adjusts for a variety of torso lengths, which matters more than any other number on the spec sheet. The pack weighs 3.5 pounds, which is not the lightest 50-liter pack you can buy, but it is light enough that I stopped thinking about the weight by the end of the first climb.

How I've Used It

I have used the Renn 50 on four overnight trips since April: a one-night shakedown in May and three longer trips over the summer, each two to three nights. That is a full season for me, the same rhythm I have kept for years. I day hike most weeks from May to October, and I take two or three backpacking trips each summer. Tom carries his own pack, so the Renn has been my only backpacking pack all season.

The shakedown in May was a single night at a trailhead in the Sapphire Range, about forty minutes from home, and it was exactly the right way to start. I left the house before Tom was awake, drove the forty minutes with a thermos of coffee, and had the trail to myself until mid-morning. I learned that the hipbelt wanted to sit higher than I had it, that the load rode better with the sleeping bag low, and that a full pack on a short climb tells you more than an hour in a store. I came home with a list of small adjustments, most of them about where things sat in the pack.

On the second trip I lowered the load, tightened the hipbelt the way the outfitter showed me, and the pack settled into something close to invisible. That trip was two nights in early July, and I remember the exact moment things clicked. We stopped for lunch on a ridge about four miles in, and I realized my shoulders had not complained once on the climb. The stove and the water were riding close to my back, the hipbelt was snug over my hipbones, and the pack had simply disappeared. That is the highest compliment I can give a pack: I stopped thinking about it. By the third and fourth trips, the routine was automatic. Pack the heavy stuff close to my back and between my shoulder blades, tighten the hipbelt, and walk.

For the record, my left knee still gets sore on long descents, and the pack does not fix that. What it does is carry its share without adding to the problem. When the load rides correctly on your hips, your legs do the work and your shoulders stay free. That is what the Renn does for me, trip after trip.

The Fit and the AirSpeed Suspension

The AirSpeed suspension is the reason I bought this pack. The backpanel is tensioned and adjustable for a variety of torso lengths, so it does not sit against your back like a flat board. It holds the pack away from you, which sounds like a small thing until you are climbing a switchback in July with a full load and you realize your back is not soaked.

The adjustment is straightforward. The outfitter measured my torso from the base of my neck to my hipbones, and that number set the starting point. You set the backpanel for your torso length once, then make small changes if you need to. I set mine before the first trip and made one small change after the May shakedown. The hipbelt was the harder lesson. On that first trip I had cinched it around my waist the way I cinch a daypack, and the pack rode too high. My shoulders took the weight and I came home sore. When I finally loosened the shoulder straps and let the hipbelt carry the load on my hipbones, everything changed. Once I got it to sit on my hipbones instead of my waist, the pack stopped pulling on my shoulders entirely.

Ventilation matters more than I expected. Because the tensioned panel holds the pack off your back, air moves between the mesh and your shirt. On a warm afternoon with a full load, I noticed the difference on the first climb. My shirt was damp at the shoulders, but my back was not soaked the way it used to be with my old pack.

The shoulder straps and hipbelt are adjustable, which I appreciated on the longer trips. I could loosen the shoulder straps on the climbs and tighten them on the descents, and the hipbelt stayed where I put it. On a three-nighter with a full load, that kind of fine-tuning is the difference between a comfortable day and a long one.

Seven Pockets and the Integrated Raincover

The Renn has seven pockets, which is more than enough for a weekend trip. The top pocket holds my headlamp, sunscreen, and a small first aid kit. The front utility pocket takes the raincover when it is dry and my map when it is not. The main compartment carries everything else. I keep the things I need on the trail where I can reach them without stopping, and the things I need only in camp at the bottom of the pack. On the third trip I needed my headlamp at dusk and found it in about ten seconds without pulling anything else out, which is the whole argument for pockets that have jobs. After four trips I have a system, and the system has not required me to unpack everything to find a headlamp.

The integrated raincover is the feature I almost rolled my eyes at and then used more than I expected. It is built into the pack, it is removable, and it stows away when the sky is clear. Montana summers are not known for steady rain, but afternoon thunderstorms are real. There were two trips this season where the cover earned its place before the first drop fell.

The pack is made of polyester, which I mention because it has held up to being dropped on granite, shoved under a tarp, and packed into the back of the Subaru with the rest of our gear. After a full season it looks like a pack that has been used, not abused. No rips, no loose stitching, nothing worn through.

How It Carries Over a Full Season

The real test of a pack is not the first trip. It is the third and fourth, when the newness wears off and you stop being careful with it. The Renn has been rained on, set down on wet rock, overstuffed for a three-nighter, and carried over trails that were mostly rock and root. It still carries the same as it did in May. The third trip was the one that mattered. We were out for three nights in late August, and the forecast lied to us. It rained most of the second day, a cold steady drizzle that had us in rain gear by mid-morning. The Renn sat out in it for three hours while we ate lunch under a tarp, and when I shouldered it again everything inside was dry. The cover had done its job, and the pack shrugged off the wet without a complaint.

The 50-liter capacity has been right for me. I am an organized packer, not a heavy one. I can fit a sleeping bag, a tent, a stove, food for three days, and my Sawyer filter without playing Tetris at the trailhead. There is room left over for the things I add at the last minute, which is exactly what I want from a pack.

The dimensions are 27.6 by 14.6 by 14.6 inches, which matters more than you might think when you are loading the back of the Subaru next to Tom's pack and the cooler. It slides in without a fight and leaves room for the rest of the gear. A pack that is awkward to pack into the car is a pack you will not reach for.

The 3.5-pound weight is worth talking about honestly. There are lighter packs, and if you are counting every ounce, the Renn is not the pack for you. But I am not counting every ounce. I am carrying a pack that fits, ventilates, and has a raincover built in, and that trade is the right one for me.

The Tradeoffs

No pack is perfect, and the Renn has its quirks. It took me two trips to get the hipbelt and load settled. On the first trip I came home with sore shoulders because I had the load riding too high and the hipbelt too loose. That is partly my inexperience with this particular pack and partly the nature of an adjustable suspension: you have to find your setting.

The integrated raincover is mostly a good thing, but it does add a small step when the weather turns. You stop, pull it out, cover the pack. It is not a big deal, and I would rather have it than not, but it is worth knowing that the pack is not fully waterproof on its own. The cover handles rain. If you dunk the pack in a river, that is on you.

The other tradeoff is that this is a women's-specific pack, designed for a woman's proportions. It fit me well once adjusted, but fit is personal. If you are between sizes, try it on with weight in it before you buy. The outfitter let me load it with bags of rice, and that ten minutes told me more than any spec sheet.

None of these are reasons to avoid the pack. They are reasons to buy it with your eyes open, the same way you would buy any piece of gear you plan to carry for years.

Alternatives I Considered

Before I bought the Renn, I tried on the Osprey Kyte 48 at the outfitter. It is a fine pack, and I can see why people like it. For me, the AirSpeed suspension and the integrated raincover tipped the decision. I have never owned a Kyte, so I cannot compare them mile for mile, but the fit in the store was enough to tell me the Renn was the one.

I also looked at packs that were lighter on paper and read a lot of reviews. What I kept coming back to was fit. A pack that is two pounds lighter but sits wrong on your hips will feel heavier at mile six than the Renn does at mile ten. Fit is the spec that matters most, and the Renn fits me.

Once I got the hipbelt to sit on my hipbones, the pack stopped pulling on my shoulders. I stopped thinking about it, and that is the whole point of a pack.

Who This Is For

The Renn 50 is for the weekend backpacker who wants one pack that does the job without fuss. If you take two or three trips a year, carry a normal amount of gear, and care more about fit and ventilation than shaving ounces, this pack is worth a serious look. It is also a good choice if you are older and you have learned, the way I have, that a pack that fits is worth more than a pack that is technically lighter.

If you are the kind of hiker who keeps gear for years, the Renn is built to last that long. I have no doubt this pack will still be going when I am ready to pass it along. That is the kind of purchase I like to make once.

Who Should Skip It

Skip the Renn 50 if you are a thru-hiker counting every ounce or if you want the lightest possible setup. It is also not the pack for you if you are not willing to spend ten minutes setting the backpanel and learning where the hipbelt belongs. The pack does not do that work for you. And if you are between torso sizes, try it on with weight in it before you buy, because fit is everything.