Copper Spur HV UL1 vs Hornet OSMO 1P
top ten:best 1 person backpacking tents
Choosing a solo shelter for three-season backcountry travel often comes down to a fundamental trade-off: livable comfort versus trail weight. The Big Agnes Copper Spur HV UL1 and the NEMO Hornet OSMO 1P represent the gold standard of ultralight one-person shelters, yet they approach solo living with distinct design philosophies. Big Agnes leans heavily into livability and user-friendly architecture with the Copper Spur, utilizing a fully freestanding frame, steep vertical sidewalls, and an innovative awning-style vestibule that delivers shelter versatility. Conversely, NEMO targets maximum gram-shaving efficiency with the Hornet OSMO, implementing a semi-freestanding pole design and a cutting-edge proprietary composite fabric engineered to resist sagging in wet weather. If you frequently camp on hardpan, granite slabs, or wooden platforms, the freestanding structure of the Copper Spur can dramatically reduce campsite frustration. However, if your itinerary demands long-mile days where every ounce of pack weight and cubic inch of pack volume counts, the Hornet OSMO makes an exceptionally compelling case. Deciding between them requires weighing setup convenience and livability against raw weight savings and wet-weather fabric performance.
Spec-by-Spec
| Spec | Copper Spur HV UL1 | Hornet OSMO 1P |
|---|---|---|
| Minimum Trail Weight | 1 lb 14 oz (850 g) | 1 lb 13 oz (822 g) |
| Packed Weight | 2 lbs 2 oz (964 g) | 2 lbs 4 oz (1.02 kg) |
| Capacity & Dimensions | 1-person; 20 sq ft floor; 38 in peak height | 1-person; 22.3 sq ft floor; 39 in peak height |
| Materials | Solution-dyed ripstop nylon; DAC Featherlite NFL/NSL poles | Proprietary OSMO poly-nylon ripstop; DAC Featherlite NFL poles |
| Price Tier | Premium (~$450) | Premium (~$430) |
| Warranty | Manufacturer's Lifetime Warranty | NEMO Lifetime Warranty |
| Best Use | Ultralight backpacking, fastpacking, general 3-season hiking | Thru-hiking, fast-and-light adventures, wet-climate hiking |
| Portability (Packed Size) | 17.5 x 5.5 in (44 x 14 cm) | 12.5 x 7.5 x 3.5 in (32 x 19 x 9 cm) with Divvy Cube |
| Durability | Ultralight mixed-denier nylon; requires care around abrasive ground | OSMO fabric resists wet sagging and offers high tear strength |
| Feature Highlights | Fully freestanding pitch, awning vestibule, 3D interior mezzanine | Semi-freestanding, Flybar volumizing clips, Nightlight Pocket |
Copper Spur HV UL1
Best for: Backpackers who want maximum interior comfort, vestibule versatility, and the pitch-anywhere convenience of a fully freestanding tent.
Pros
- Fully freestanding structure pitches easily on rocky or compact terrain
- Awning-style vestibule provides excellent shaded ventilation and gear coverage
- High-volume pole hubbing creates generous vertical shoulder and head room
- Solution-dyed fabric significantly reduces energy and water use in production
Cons
- Standard cylindrical stuff sack takes up more vertical pack volume
- Traditional nylon fly absorbs more water and stretches when wet
Hornet OSMO 1P
Best for: Ounce-counting thru-hikers and wet-weather backpackers seeking an ultra-compact pack size and sag-free rain protection.
Pros
- Proprietary OSMO fabric resists moisture stretch and dries significantly faster
- Rectangular Divvy Cube stuff sack packs down flatter inside narrow packs
- Flybar clips expand interior headspace without adding heavy structural poles
- Slightly lighter minimum trail weight for gram-conscious backpackers
Cons
- Semi-freestanding foot design requires secure staking to avoid collapsed space
- Tapered foot-box can feel tight when using wide, high-loft sleeping pads
- Delicate floor material demands the use of a footprint on coarse terrain
The Verdict
While both tents sit at the top of the ultralight tier, the Big Agnes Copper Spur HV UL1 edges out the overall victory for most solo backpackers. Its true freestanding architecture eliminates the frustration of trying to stake out foot corners on hard surfaces, while the awning vestibule and steep sidewalls provide superior everyday livability that offsets its nominal weight penalty. That said, the NEMO Hornet OSMO 1P remains the superior technical choice for dedicated long-distance thru-hikers. NEMO's OSMO fabric is genuinely game-changing in persistent rain, eliminating midday pitch readjustments caused by nylon sag, and the Divvy Cube sack packs down remarkably flat. If you prioritize easy pitching anywhere and room to wait out a storm in comfort, buy the Copper Spur. If you are counting every single gram and expect prolonged wet-weather conditions across high-mileage days, pick the Hornet OSMO.
See where both rank in the full list: the complete Top 10 →