Best Hiking Daypacks (25-35L): Top 5 Models for Day Hikes

A 25- to 35-liter daypack sits in an awkward middle ground. It's too big to be called minimalist and too small to fit a tent, so brands have to make real decisions about what to prioritize: ventilation, load support, or just keeping the weight down.

The global backpack market is on track to grow from around $25.5 billion in 2026 to $42.7 billion by 2033, and daypacks make up a big share of that. More models mean more trade-offs to sort through before you buy.

This guide compares five of the best hiking daypacks in the 25-35L range, chosen because they consistently score well in independent testing. It breaks down what each one is actually good at and walks through how to pick the right size and features for your own hikes. Pair the right pack with the right hiking shoes, and you've covered the two pieces of gear that matter most on trail.

The best daypacks for hiking: top 5 models worth carrying

Since day hikes are so popular among remote workers, we decided to find out which small backpacks are the best for spending a day outdoors. Below you’ll find five packs that span the 25-35L range, from lightweight and versatile to built for long days with a full load. Rankings and test data are pulled from independent gear labs that hike hundreds of miles with each pack before scoring it, which is why these are some of the best-rated daypacks for hiking you can buy right now.

1. Osprey Stratos 34

The Stratos 34 is built more like a miniature backpacking pack than a typical daypack. It uses a full-frame design with Osprey's AirSpeed suspension, which keeps the mesh back panel away from your back and lets air move freely beneath it.

At 34 liters and roughly 1.45 kg (3 lb 3 oz), it's on the heavier end of this list, but that weight buys a real suspension system rated for loads up to about 14 kg (30 lb). It's a panel-loading pack, so the whole front opens up for packing, and it includes a stowable rain cover. 

This is the pick if you regularly carry a full day's worth of layers, food, and water, or if you hike somewhere hot and ventilation matters more than shaving off grams.

2. REI Co-op Traverse 35

The Traverse 35 has a capacity larger than all the other packs here and can hold the most weight. During testing, its weight was recorded at 1.47 kg (52 oz), and it had the highest comfort score out of all packs between 25-35L, because of its cushioned hip belt and shoulder straps.

It includes a rain cover, a top pocket for quick-access items, and exterior straps for lashing on extra gear. It's the pack to reach for if you're carrying winter layers, camera gear, or anything close to an overnight kit but not quite staying out overnight.

The trade-off is mobility. Its rigid frame makes it less nimble on scrambles or technical terrain than the lighter packs on this list, though it's the kind of pack that would comfortably handle a long day like the night ascent of Mount Teide, where you're carrying extra layers and a headlamp on top of the usual essentials.

3. Gregory Zulu 28 LT

The Zulu 28 line features Gregory’s VaporSpan back panel, which is basically a suspended mesh pack that allows the pack to remain off your back, ensuring good air circulation. Currently available Zulu 28 LT packs come with 4 liters extra and no drawstring.

This backpack weighs around 1.13 kg (2 lb 7 oz) and costs $159.95. Hip belt pockets are spacious and slope forward to your torso, which allows you to access food or a phone even when the backpack is on your back. The hydration hose opening is quite wide and can accommodate a hydration bladder with the mouthpiece still attached.

This is the best choice for those who prioritize comfort and ventilation over sheer capacity; this pack excels when it comes to long hikes lasting more than 2 hours, or when you carry more than 5-6 kg of gear.

4. Osprey Sportlite 25

Weighing around 0.77 kg (27.2 oz), the Sportlite 25 is the lightest technical pack of this group, and the one that received the highest ratings for versatility by the testers. The use of AirScaper Atilon foam framesheet instead of a suspension system is what helps keep its weight low while still providing good support to the back.

Ten different pockets are used for organization of the gear inside, while a hydration reservoir is placed in an external sleeve and can be exchanged without taking everything out of the pack. It's not one of the most weather-resistant packs, and its hydration system doesn't fit all types of bladders, but for a very versatile pack which works just fine both for hiking, a workout, and running errands, it's hard to find something better for $130. 

This is an ideal pack for a digital nomad who needs only one pack for the hike and the day spent coworking, and it's so compact that it can be packed even inside a carry-on suitcase. That is why it's one of the best carry-on daypacks for flights and a great small daypack for hiking.

5. REI Co-op Trail 25

The Trail 25 is the cheapest one at about $100 among all the packs, but it sure does not seem like it when you load it up. It was rated well by testers in terms of comfort with a contoured foam back panel and supportive suspension system. It even has a rain cover and trekking pole attachments that many more expensive packs lack.

This pack weighs 0.88 kg (30.9 oz) and does not claim to be the lightest one, and it also has a warmer hip belt and back panel than the packs mentioned above. This is the best choice for day hikers looking for comfort without spending too much money on a suspension system.

Comparing the top daypacks (25-35L): weight, capacity, and price

Once you know each pack's personality, it's easier to see how they stack up side by side. The table below summarizes the key differences to help you match a pack to your own hiking style.

None of these packs wins in every category, and here’s why. The Stratos and Traverse trade weight for capacity and support, the Zulu trades some capacity for best-in-class ventilation, and the Sportlite and Trail 25 trade a full suspension system for a lighter, cheaper pack that still performs well on moderate day hikes.

What we carry: the best daypack​ for our needs

I hike with the Osprey Tempest 26 in Deep Fig/Hotspot Pink, the women's-specific sibling of the Talon. It sits just under 1 kg (2.25 lb), uses the same AirScape back panel and Stow-on-the-Go trekking pole attachment as the packs above, and the BioStretch hip belt is cut for a narrower frame than the unisex packs on this list. 

It falls within our 25-35L range at 26 liters, though it didn't make the five above since it's a women's-specific build rather than a unisex one. It's been a solid, no-complaints daypack for me: functional on the trail, and I like how it looks enough to wear it around town, too. My partner is still deciding what his take is, though. 

For navigation on longer or unfamiliar routes, I also carry a GPS watch for hikes rather than relying solely on my phone.

How to choose the right daypack: 5 simple tips

A daypack only helps if it fits your body and your kind of hiking. A few practical checks go a long way toward finding the right one.

1. Size your pack to your trip duration

If your hike is going to last half a day, you'll only need 25 liters of capacity for water, some snacks, and a light top layer. Once you'll be hiking more than six hours, or bring clothing layers for weather changes, 30-35 liters give you additional room and won't force you to tie additional gear to the outside of your backpack. If you're undecided about sizing, choose a bigger pack.

2. Ventilation matters more in the hot regions

The suspended back panel systems, such as those featured on the Stratos 34 and Zulu 28 LT, keep your backpack separated from your body and allow for air circulation. Back panels with foam padding, used in the Traverse 35 and Trail 25, lay flat on your body and offer better load support, but they will keep you warmer. It's worth keeping in mind that ventilation becomes crucial when you'll be hiking in hot and humid areas.

3. Don't ignore the hip belt

If the backpack weighs 7-8 kg (15-18 lb), the work done by the hips will be far more than that done by shoulders. Wide padded belts like those found on the Traverse 35 and Zulu 28 LT are designed to transfer load to the hips, which will protect shoulders. Webbing belts as can be seen on Trail 25 are appropriate for light loads but may start to cause discomfort when loads increase.

4. Check hydration compatibility

Most packs in this range fit a hydration bladder, but the setup varies. Internal sleeves with a clip, like the Zulu's SpeedClip, work well but aren't compatible with every bladder brand. External sleeves, like the one on the Sportlite 25, let you refill without unpacking your whole bag, which is worth a lot on a hot day.

5. Weigh up whether you need a rain cover

The Stratos 34, Traverse 35, and Trail 25 include a rain cover. The Sportlite 25 and Zulu 28 LT do not. None of these hiking daypacks is fully waterproof. They can handle light rain, but in heavy or prolonged rain, you'll need a rain cover to keep your gear dry. If you often hike in places with unpredictable weather, remember to factor in the cost of a separate rain cover or a few dry bags if your pack doesn't include one.

Final thoughts: which daypack should you buy?

For most day hikers carrying a full kit in variable weather, the Osprey Stratos 34 or REI Co-op Traverse 35 are the strongest all-rounders. Both trade some weight for real load support and durability. If comfort and airflow matter more than raw capacity, the Gregory Zulu 28 LT is the better fit, especially on longer, warmer hikes.

For lighter days, commuting, or travel where the pack needs to do more than one job, the Osprey Sportlite 25 is the most versatile option here, and the REI Co-op Trail 25 gives you most of the comfort at a lower price if you're not ready to spend $150-plus.

As always, the right pack is the one that fits your torso length and carries your actual gear comfortably, not the one at the top of a list. Try a loaded pack on before committing, if you can.

Prices and availability change. Check the retailer link before buying, and let us know in the comments if something's out of date.