Mayfly OSMO 3P


Out of stock


Armed with NEMO’s top-performing OSMO™ fabric on the fly, the Mayfly OSMO 3P 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 scores 4x better in water repellency 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.

Paired with the OSMO fly is a super-durable ripstop tent floor that can withstand the not-so-precious treatment that comes with life on the trail. Mayfly OSMO’s massive doors and generous headspace, however, feel anything but rough — there’s ample room for two to comfortably sit side by side.

Featuring NEMO-exclusive Elements™ hardware, this semi-freestanding tent offers an easy, intuitive setup that’s highlighted by the Axial™ corner anchors, which allow for connection and adjustment in one streamlined piece. A Divvy Cube™ stuff sack completes the package for efficient storing and splitting the weight with a friend.


Citron / Mango
3 Person
3 Season
Minimum Weight:
3 lbs 10 oz / 1.63 kg
Packed Weight:
4 lbs 1 oz / 1.86 kg
Packed Size:
18.0 x 6.5 x 4.0 in / 46 x 16.5 x 9.5 cm
Peak Height:
42 in / 105.41 cm
Floor Area:
39.7 sq ft / 3.7 sq m
Floor Dimensions:
88 x 68/62 in / 223.52 x 172.72/157.48 cm
Vestibule Area:
8.6 sq ft + 8.6 sq ft / 0.8 sq m + 0.8 sq m
Door Quantity:
Vestibule Quantity:
Canopy Fabric:
Polyester Taffeta / No-See-Um Mesh
Fly Fabric:
Floor Fabric:
PU Polyester (2000 mm)
Rainfly Fabric:
Sil/PU OSMO™ (1500 mm)
Stuff Sack:
Divvy Cube
Other Features:
  • bluesign®-approved OSMO fly meets strict ecological and chemical requirements and has been produced with a minimum impact on people and the planet.
  • High-performance, high-strength OSMO™ poly-nylon ripstop fabric has 4x longer lasting water repellency and 3x less stretch when wet.
  • OSMO fabric is made from 100% recycled yarns that are PFAS-free and meet flame retardancy standards without the use of added chemicals.
  • Super-durable 68D PU ripstop floor withstands rough treatment on the trail and helps your tent last even more seasons.
  • Massive doors and generous headspace allow for side-by-side seating.
  • Divvy Cube™ rectangular stuff sack allows you to split the weight with your partner, but stows more efficiently in your backpack.
  • Hubbed, pre-bent aluminum poles with a high-arching main pole to significantly increase volume at the head and foot ends.
  • Color-coded webbing and NEMO-exclusive Axial™ corner anchors create a smooth, intuitive setup experience.
  • Tapered floorplan saves weight while giving backpackers space where they need it most.
  • Protected by the NEMO Lifetime Warranty.

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