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Compare Ultralight Packs head to head

Pick any two picks from this list and see specs, current price, pros, cons and reader ratings side by side.

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Focal 58

#10 on this list

Focal 58

Gregory

The Gregory Focal 58 is targeted at hikers who want to cut weight without giving up the structured support, plush cushioning, and ventilated back panel of a traditional backpack. It is an ideal pack for hikers taking on week-long trips with 30-plus-pound starting weights, guided excursions, or those who find bare-bones ultralight packs too unforgiving. The Focal relies on Gregory's FreeFloat suspension, which combines an internal tubular aluminum perimeter frame with dynamic lower panels that pivot naturally with your walking motion. A suspended mesh back panel keeps the pack body off your spine, promoting constant airflow on warm days. The main pack body utilizes 100D and 210D recycled high-density nylon, giving it far greater puncture resistance than ultralight composite fabrics, while the oversized hipbelt pockets easily hold modern smartphones. Weighing around 2 pounds 13 ounces, the Focal sits at the heavy boundary of the ultralight category. The gap created by the suspended mesh back panel can also shift the load's center of gravity slightly away from your back, which can feel noticeable when leaning forward during steep, technical scrambles. **Highlights** - FreeFloat dynamic suspension system moves naturally with your stride. - Tubular aluminum frame comfortably supports loads up to 35 pounds. - Suspended mesh back panel provides high-performance back ventilation. - Durable 100D and 210D recycled nylon withstands rough handling. - Extra-large hipbelt pockets easily accommodate modern smartphones. **Watch-outs** - At nearly 3 pounds, it is heavy for a true ultralight pack. - Air-gap back panel positions internal pack weight slightly away from the spine. - Less compressible than minimalist roll-top alternatives.

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Southwest 55

#1 on this list

Southwest 55

Hyperlite Mountain Gear

The Hyperlite Mountain Gear Southwest 55 is built for long-distance hikers and thru-hikers who want an impenetrable main compartment and dependable load transfer without carrying a pack over two pounds. It excels on abrasive trails, dense brush corridors, and wet routes where standard exterior mesh pockets tend to snag and tear. Constructed from woven Dyneema composite fabric, the pack body offers exceptional water resistance and high tear strength. Its support system relies on dual contoured aluminum stays and a solid foam back panel, transferring weight smoothly down into a firm, fully integrated hipbelt. Rather than delicate mesh, the exterior features three hardline Dyneema pockets that easily handle sharp branches and granite scrapes, while the roll-top closure allows you to shrink the pack down on short weekend trips or extend it for week-long resupplies. The trade-offs stem directly from its minimalist construction. The solid back panel sits flat against your spine, generating zero airflow and leading to noticeable sweating in warm conditions. The padding on the hipbelt and shoulder straps is relatively stiff rather than plush, requiring a break-in period for some hikers. Additionally, the solid external pockets offer no stretch, which limits how easily you can cram in bulky, odd-shaped items. **Highlights** - Dyneema Woven Composite fabric delivers high water resistance and abrasion defense. - Solid hardline exterior pockets resist snags on brush and rocky scrambles. - Removable dual aluminum stays provide dependable load transfer up to 35 pounds. - Flexible roll-top closure system adapts to variable gear volumes. - Generous integrated hipbelt pockets keep essentials accessible. **Watch-outs** - Solid back panel traps heat and perspiration in warm weather. - Premium price point makes it a substantial investment. - Hardline exterior pockets lack stretch for bulky gear.

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Specs side by side

Focal 58 versus Southwest 55 specifications
SpecFocal 58Southwest 55
Base Weight2 lb. 12.8 oz. (Men's M)1 lb. 13.3 oz. (size Medium, white)
Pack Capacity58 Liters—
Frame DesignTubular aluminum perimeter hoop—
Suspension TypeFreeFloat dynamic suspended mesh—
Primary Fabric100D & 210D recycled high-density nylon—
Approximate PriceAround $270—
Primary Material—Dyneema Woven Composite 3.9 (200D)
Frame Style—Dual removable contoured aluminum stays
Closure Type—Roll-top with side and top compression
Carrying Capacity—55 Liters internal plus external pockets
Retail Price—Approximately $420

What our reviewers liked and didn't

Focal 58

  • Suspended mesh back panel provides exceptional ventilation in hot conditions
  • FreeFloat dynamic hipbelt comfortably manages loads up to 35 pounds
  • Durable 100D and 210D recycled fabrics resist abrasive trail wear
  • Large hipbelt pockets readily hold contemporary smartphones
  • At nearly 2 pounds 13 ounces, it sits at the heavy edge of ultralight
  • Suspended mesh gap pushes the center of gravity slightly rearward
  • Perimeter wire frame limits flat pack compression when underfilled

Southwest 55

  • Sub-two-pound build with reliable load transfer up to 35 pounds
  • Exceptional water and abrasion resistance from Dyneema composite fabric
  • Hardline exterior pockets withstand sharp branches and rough stone
  • Roll-top collar scales smoothly between high-volume resupplies and short trips
  • Flat back panel promotes heavy sweating with zero integrated airflow
  • Exterior pockets do not stretch, limiting storage for bulky gear
  • Premium $420 price point requires significant upfront investment

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