The NEMO Hornet OSMO Ultralight Tent is a leading choice among backpackers, bikepackers, and minimalists who prioritize weight savings without compromising performance. Available in 1P, 2P, and 3P configurations, it features NEMO’s proprietary OSMO™ fabric for improved water repellency, reduced stretch when wet, and eco-conscious construction free from PFAS and flame-retardant chemicals.
Design and Build Quality
The Hornet OSMO is engineered for ultralight functionality and resilience.
- Fabric: NEMO’s OSMO™ poly-nylon ripstop combines recycled yarns with water resistance that lasts four times longer than conventional materials and stretches three times less when wet.
- Pole System: Uses a minimalist DAC Featherlite hubbed pole design, optimized for weight and quick setup.
- Flybar™ Volumizing Clip: Included with the 1P and 2P models to expand the tent’s top space, creating more headroom.
- Rainfly and Floor Ratings: Rated at 1200mm (fly) and 1500mm (floor) hydrostatic head for reliable protection in moderate storms.
The stitching, seam taping, and reinforced anchor points speak to NEMO’s attention to detail and long-term durability.
Weight and Packability
Compact gear is essential for fast-paced or weight-restricted travel, and the Hornet OSMO delivers impressive packability.
| Model | Minimum Weight | Packed Weight | Packed Dimensions |
|---|---|---|---|
| 1P | 822g / 1 lb 13 oz | 1.02 kg / 2 lb 4 oz | 32 x 19 x 7 cm |
| 2P | 948g / 2 lb 1 oz | ~1.2 kg | ~35 x 20 x 10 cm |
| 3P | 1.28 kg / 2 lb 13 oz | ~1.5 kg | ~40 x 22 x 12 cm |
- Divvy Cube™ Stuff Sack: A rectangular-shaped sack allows for efficient packing and gear sharing between partners.
- Short Pole Segments: Designed to fit in backpacks and handlebar bags for bikepacking use.
Perfect for hikers, fastpackers, or anyone needing space-saving gear with reliable shelter performance.
Interior Space and Livability
Despite its ultralight build, the Hornet OSMO offers generous interior volume for its class.
- Peak Heights:
- 1P: 39 inches
- 2P: 41 inches
- 3P: 44 inches — enough for most users to sit up comfortably.
- Doors and Vestibules:
- 1P: One door, one vestibule
- 2P and 3P: Two doors and two vestibules offer independent entry and gear storage.
- Triangulated Guy-Outs: Pull side walls outward to maximize foot space and keep sleeping bags away from condensation-prone areas.
The Flybar™ clip creates extra headroom without adding structural bulk — a standout feature for a tent weighing under 1.5kg.
Ventilation and Condensation Control
Managing interior moisture is crucial in lightweight shelters. The Hornet OSMO integrates multiple features to keep air circulating.
- Mesh Canopy: Fine mesh across the upper tent body allows for stargazing while keeping bugs out.
- Elevated Rainfly Edges: Enhance cross-ventilation while maintaining weather protection.
- Nightlight Pockets™: Diffuse headlamp beams and provide ambient light without harsh glare.
Though there is no dedicated fly vent, airflow is sufficient in most climates. Proper staking and orientation will further reduce condensation buildup.
Setup and Pitching
The tent is semi-freestanding and quick to pitch — even solo.
- Color-Coded Poles and Clips: Simplify assembly in low light or high wind.
- Gatekeeper™ Door Tiebacks: One-handed operation to roll and secure doors out of the way.
- Semi-Freestanding Structure: Can stand with only poles and minimal staking, ideal for tough terrain or fast setup.
Total setup time averages 4–6 minutes once familiar, making it highly suitable for end-of-day pitches or stealthy overnight stays.
Durability and Weather Resistance
The Hornet OSMO is built to handle backcountry conditions with minimal compromise.
- OSMO™ Performance: Resists sag and maintains structure in wet conditions better than traditional nylon.
- Floor Material: Holds up well in regular use; for rugged terrain, a footprint is recommended.
- Wind Stability: With proper guying, the tent withstands moderate winds confidently.
Long-term users report excellent durability across weeks of continual use in varying climates, from alpine rainstorms to desert dust.
Sustainability and Eco Credentials
NEMO’s commitment to sustainability is clearly reflected in the Hornet OSMO.
- PFAS-Free Water Repellent: Avoids environmentally persistent chemicals.
- Recycled Content: Made with 100% recycled yarns in the tent body and fly.
- bluesign® Approved Fabric: Meets stringent safety and environmental benchmarks.
For eco-conscious adventurers, it’s one of the few shelters that balances performance with meaningful sustainability.
Pros and Cons Summary
Pros:
- Ultralight and compact
- Excellent ventilation and stargazing mesh
- Dual entry and vestibules (2P and 3P models)
- Flybar increases internal volume
- Sustainable, PFAS-free OSMO fabric
Cons:
- Setup requires some initial practice due to multi-part cleat and clip system
- Floor fabric benefits from additional protection in rocky terrain
- Premium pricing compared to heavier alternatives
- No dedicated fly vent (rely on elevated edges and mesh)
Ideal Use Cases
The Hornet OSMO is best suited for:
- Thru-hikers and backpackers seeking maximum efficiency
- Bikepackers needing compact shelter with short pole segments
- Minimalists prioritizing comfort with minimal weight
- Eco-conscious users preferring sustainable gear
Its versatility and ultra-portability make it a go-to choice for single or multi-week excursions in diverse environments.
Pricing and Value
| Configuration | MSRP |
|---|---|
| 1P | $419.95 / £419.95 |
| 2P | $449.95 / £449.95 |
| 3P | $549.95 / £549.95 |
While it sits in the premium segment, its advanced materials, smart design, and longevity make the Hornet OSMO a solid investment for serious adventurers.
Final Verdict
The NEMO Hornet OSMO Ultralight Tent delivers where it matters most: weight, durability, and livability. With thoughtful design elements like the Flybar, mesh canopy, and PFAS-free waterproofing, it’s one of the most well-rounded shelters available to gram-counting adventurers.
Whether you’re trekking through alpine passes or carving out a stealth camp in the forest, the Hornet OSMO is a reliable companion built to handle the miles and the elements.
