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The Nemo Mayfly OSMO 3P tent uses Nemo's proprietary OSMO fabric, which is made from recycled materials and offers excellent water repellency and durability. The tent has a generous interior space and a sturdy construction with a 68D PU-coated ripstop polyester floor.
Nemo says:
Armed with NEMO’s top-performing OSMO™ fabric on the fly, Mayfly OSMO is a notably durable backpacking shelter for adventurers ready to hit the trail. A proprietary composite fabric, OSMO is made from 100% recycled polyester and nylon yarns and repels water 4x longer than standard tent fabrics — all while stretching 3x less when wet. OSMO fabrics meet fire retardancy standards without the use of added chemicals and are treated with PFAS-free waterproofing.
Our Verdict
The Nemo Mayfly OSMO 3P tent is an excellent new offering for backpackers seeking a spacious, durable shelter. The design is dominated by Nemo's proprietary OSMO fabric, which is made from 100% recycled polyester/nylon yarns. This advanced composite material repels water 4x longer than standard tent fabrics while stretching 3x less when wet. The OSMO fly also receives a PFAS-free DWR treatment.
While the OSMO fly excels at shedding moisture, the rest of the Mayfly 3P's construction is equally robust for rugged adventures. The 68D PU-coated ripstop polyester floor can withstand plenty of trail abuse. Inside, the tent provides a generous 88" x 62" floor with a 43" peak height, fitting three plus gear, though I would use this as a 2-person tent for extended trips.
Unique pole geometry with Axial corner anchors allows for a taut pitch. Well-designed features like the rectangular Divvy Cube stuff sack make splitting the 3lb 10oz trail weight easy between hiking partners. The Mayfly OSMO 3P blends weather protection with durable, space-efficient construction for a performance-oriented and relatively lightweight three-person backpacking tent.
- Reviewed by Ultralight Outdoor Gear
Features
- OSMO™ Rainfly - 100% recycled proprietary fabric performs better than comparable tent fabrics and is coated with a PFAS-free DWR.
- Super-Durable Floor - 68D PU ripstop withstands rough treatment on the trail and helps your tent last even more seasons.
- Divvy Cube™ Stuff Sack - Rectangular case fits more efficiently in backpacks and can be compressed when splitting the weight with a partner.
- Axial™ Corner Anchor - Part of NEMO’s Elements™ custom hardware collection, this aluminum piece enables quicker, easier setup and tension adjustment without re-staking.
Specifications
Our Weights
- Flysheet weighs: 475g
- Inner weighs: 743g
- Poles weigh: 370g
- Total weight: 1588g(excludes pegs & bags)
- Pegs x 8 weigh: 129
Brand Specs
- Minimum Weight: 3 lb , 10 oz / 1.63 kg
- Sleeping Capacity: 3
- Doors / Vestibules: 2
- Packed Sized: 18.0 x 6.5 in dia / 46 x 16.5 cm dia
- Floor Dimensions: 88 X 62 in / 223 x 157 cm
- Peak Height: 43 in / 109 cm
- Season: 3
Material & Construction
- Frame - 1 hubbed aluminum 9 + 9.5 mm pole /1 aluminum 9.5 mm pole
- Fly - 100% recycled OSMO™ (1,500 mm)
- Canopy - Polyester taffeta, no-see-um mesh
- Floor - 68D PU polyester ripstop (2,000 mm)
