Best Thru-Hiking Backpacks (2026)

The Scream 55 is Mountainsmith's lightweight backpacking pack: sub-3 lb for 55 L at $160, which is the best weight-to-price combination in this catalog. The catch is that it comes in exactly one torso length, so it either fits or it does not.

The Kakwa 55 is Dan Durston's disruptively priced ultralight — under 2 lbs, a 45 lb load rating, and a 2026 update with a redesigned hipbelt, all starting around $200 in UltraGrid fabric. It has become the value benchmark every new UL pack gets measured against.

The Paragon 60 replaced the long-running Paragon 58 in Gregory's 2025 lineup, adding the FreeFloat suspension from the Baltoro in a pack that's more than a pound lighter. It targets the sweet spot between comfort haulers and ultralight packs. The women's version is the Maven 58.

The Lightning is Exped's lightweight trekking pack and carries the most surprising spec in this catalog: a 48.5 lb load rating at 2.65 lb of pack weight. Its T-Rex carrying system uses an adjustable aluminium stay with reduced back contact for ventilation without giving up load control.

The Swift X is the X-Pac version of Six Moon Designs' Swift, using the same Delrin hoop frame as the Swift V but in a waterproof laminate. At 38.8 oz it is heavier than most packs in this segment, which is the cost of the hoop and the fabric.

The Asher is Kelty's value backpacking pack and the cheapest way in this catalog to a 55 lb load rating. At $169 and 2.94 lb it undercuts everything with comparable capacity, and reviewers consistently place it as the budget pick.

The Focal 58 is Gregory's answer to the Exos: an ultralight with a genuinely ventilated FreeFloat suspended mesh back and a dynamic pivoting hipbelt. The women's version is the Facet 55. It undercuts the Exos on features while matching it on weight.

The Rook 65 is Osprey's budget-line backpacking pack, delivering a suspended-mesh AirSpeed back panel, adjustable torso, and included raincover for barely half the price of an Atmos. The women's equivalent is the Renn 65.

The Eja is the women's-fit Exos and Osprey's lightweight trekking pack: 2.7 lb for 58 L, with the same AirSpeed suspended mesh as the Atmos in a stripped-down chassis. It is the pack that bridges mainstream and ultralight, offering a frame and ventilation at a weight that cottage packs compete with.

The Trailmade 60 is REI's entry-level backpacking pack, built around inclusive sizing and a fully adjustable fit at a beginner-friendly price. A huge U-shaped front opening makes it one of the easiest packs to load and unload on the market.

The Exos 58 is Osprey's crossover ultralight — a sub-3-pound pack that keeps a real suspended-mesh frame and lifetime warranty. It has been an Appalachian Trail staple for a decade, and the current generation added an adjustable torso. The women's version is the Eja 58.

The Flash 55 is REI's ultralight value play — a roll-top pack with the co-op's Packmod system of removable pockets and straps, letting owners configure or strip it per trip. It's the cheapest credible ultralight framed pack from a major retailer.

The Exos Pro is Osprey's answer to the cottage ultralight brands: 33.2 oz for 55 L, or 30.4 oz with the lid removed. It uses NanoFly, a 100D nylon crossed with 200D UHMWPE, over a 3.5 mm LightWire frame, and saves nearly a full pound against the standard Exos 58 at the cost of load rating and a fixed hipbelt.

The Flash Air is REI's ultralight pack, using a shaped spring steel frame rather than stays or a hoop. It is the only pack in this group backed by a mainstream retailer's return policy, which matters more than usual in a segment dominated by made-to-order cottage brands.

The Southwest 55 is Hyperlite Mountain Gear's flagship all-rounder, built in Maine from waterproof Dyneema composite with solid woven pockets for brush country. It's the pack that made white Dyneema the visual signature of modern thru-hiking.