Sea to Summit Alto TR1 Plus Tent Green

The one-person, semi-freestanding Alto TR1 PLUS with full fabric inner, is where ultralight tents meet class-leading space and comfort for cooler climates.


  • Patented Tension Ridge Architecture creates class-leading usable space, height and ventilation
  • Oversized Apex Vent efficiently expels hot air to prevent condensation build-up
  • Baseline and Apex Vents work together to create superior airflow and are easily adjusted from inside the tent
  • Breathable Nylon fabric canopy with seam-taped 2500mm waterhead floor for dependable performance in cold and wet conditions
  • Dual layer adjustable vents on inner ceiling and doors allow airflow without compromising insect protection
  • FairShare Storage System allows you to distribute weight evenly between friends or within your pack
  • Lightbar: tent pole bag doubles as a ceiling-mounted light-diffuser, when used in combination with your headlamp
  • Patent-pending and easy-to-use Quick Connect Tent Feet allow one-handed attachment and adjustments
  • Ultimate versatility with five set-up configurations: Dry Set-Up, Fly Only, Inner Only, Partial Fly and Classic Mode
  • Large vestibule provides plenty of space to store gear and protect it from the elements
  • Tall-wide doors allow for comfortable access and expansive views outside for a more liveable interior


Seasons 3+ SEASON
Sleeping Capacity 1 PERSON
Min Trail Weight (Fly +Inner + Poles) 1056 G
Fly + Poles + Lightfoot Footprint* Weight 781 G
Packed Weight 1228 G
Packed Size 11 x 11 x 44 CM
Floor Dimensions (L x W head/foot) 215 x 107/60 CM
Floor Area 1.81 M2
Vestibule Area 0.7 M2
Peak Height 105 CM
In-use Height 109 CM
Number of Doors 1
Number of Poles 1
Pole Material & Diameters DAC Featherlite NFL 8.7mm, PF 9.5mm & 9.8mm Anodised Aluminium
Inner Canopy Fabric 20D Nylon Ripstop
Floor Fabric 20D Sil-PeU Coated Nylon Ripstop
Floor Waterhead 2500 MM
Fly Fabric 15D Sil-PeU Coated Nylon Ripstop
Fly Waterhead 1200 MM
Footprint Available (not included) Yes
Ultralight Yes
Design Type Semi-Freestanding
Pegs Included 9



  • Silicone and Polyether Poly-Urethane (Sil-PeU) coated 15D fly fabric provides excellent hydrolytic stability for durable waterproof performance
  • 1200mm waterhead 15D fly and 2500mm 20D floor, both with fully-taped and waterproof seams
  • DAC Featherlite NFL and PRESSFIT pole sections with varying diameters for maximum strength at minimum weight
  • Strong 7075-T6 aluminium alloy Ground Control Light Tent Pegs provide secure anchoring thanks to the custom TriPoint, multi-notch design
  • Easily adjustable Ground Control Guy Cords with quick-connect V-Toggles can be attached or removed from multiple guy loops to suit wind conditions
  • Available accessories: Bigfoot Footprint, *Lightfoot Footprint, Gear Loft, additional Ground Control Light Tent Pegs and Guy Cord

Patented Tension Ridge Architecture allows us to achieve more usable space, higher doors and superior venting and airflow in our Telos and Alto tents. Most lightweight tents have cross bars at the top of their tent that angle down. The Tension Ridge cross bar cantilevers up to raise the tent height and increase tent volume.

Apex Vent

Positioned at the peak of the tent, our oversized Apex Vent efficiently expels rising warm air and humidity, preventing condensation build-up. Unlike most vent designs, the Apex Vent doesn’t require a mesh panel to maintain tension across the fly—allowing up to 70% better airflow. In conjunction with the Baseline Vents and oversized doors, the Apex Vent helps achieve exceptional  airflow in our tents—and can be adjusted (or closed off) from the inside of the tent.

Baseline Vents

Control airflow to manage humidity and condensation in wet conditions by opening or closing the Baseline Vents at the base of the tent. Face one of the Baseline Vents into the wind to achieve optimum airflow—without letting water in. In conjunction with our Apex Vent and oversized doors, the Baseline Vent helps achieve exceptional climate control and airflow in our tents—and can be adjusted (or closed off) from the inside of the tent.

Change your tent set-up to suit your needs, and the conditions.

Take advantage of good weather with Inner Only Mode or Partial Fly mode. Socialise at camp with Hangout Mode (available with our Telos tents) or hunker down with our Dry Set-Up or Classic Mode.


This modular storage system allows you to split the load between your fellow campers or within your own pack, boat or bike. The stuff sacks that comprise this clever system are also dual-use. Clip them into place in your tent to create our light diffusing Lightbar and extra storage.


Our tent pole bag doubles as a Lightbar—turning your headlamps into a tent lantern. Connecting to the ceiling with dedicated clip points, it uses light diffusing materials to cast warm ambient light.


Attach and tension the fly with one hand using our patent-pending Quick Connect Tent Feet. Achieve different set-up configurations—like Dry Set-Up, Fly Only and Hangout Modes—by connecting the fly directly to the pole tips. Finetune inner tension, stake distance and location on rocky or unyielding ground with our adjustable stake out points.


DAC make the best quality customised alloy poles by high precision processes. Sea to Summit uses a combination of Featherlite NSL, NFL and PRESSFIT poles of varying sizes to add rigidity and strength where it’s needed most. DAC’s Green Anodising process uses less toxic chemicals and less water than traditional techniques.



Collections: Hiking, Tents & Shelters

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