Alto TR1 Lightweight Tent - Sea To Summit UK

Alto TR1

One-person, semi-freestanding backpacking tent for ultralight three-season adventures.


Please select a product option to continue

Hangout Mode
Height x Width X Length
109 x 169 x 223cm
Floor Area
Floor Foot Width
Floor Length X Width
215 x 107cm
Floor Hydrostatic Head
Fly Material
15D Sil-PeU Coated Nylon Ripstop
Fly & Poles Weight
Fly Hydrostatic Head
Inner Material
15D Polyester High-Airflow No-See-Um Mesh
Minimum Trail Weight
Pole Type
DAC Featherlite NFL 8.7mm, PF 9.5mm & 9.8mm Anodised Aluminium
Tent Type
Vestibule Area
Packed H x W x L
11 x 11 x 44cm
Groundsheet Fabric
15D Sil-PeU Coated Nylon Ripstop
Number of Doors
1 Person
Selling Price

The one-person, semi-freestanding Alto TR1 is where ultralight tents meet class-leading space and comfort for three-season adventures. Our patent-pending Tension Ridge Architecture means this tent has unmatched useable room, a high ceiling, an oversized door and a large vestibule for storing gear.

A truly effective and adjustable ventilation system and multiple set-up modes also make this backpacking tent the epitome of comfort and versatility.

Though the Alto TR1 weighs only 938g (minimum trail weight), it’s packed full of intuitive features, like our FairShare Storage System, which is comprised of dual-use storage bags that can be clipped into your tent to create extra storage and our illuminating Lightbar.

With its mesh inner and DAC’s world-class Featherlite NFL and PRESSFIT pole sections, the ultralight Alto TR1 is primed for fast-and-light solo exploits.

  • Patent-pending Tension Ridge Architecture creates class-leading usable space, height and climate control
  • 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
  • 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
  • Silicone and Polyether Poly-Urethane (Sil-PeU) coated 15D fly fabric provides excellent hydrolytic stability for durable waterproof performance
  • 1200mm waterhead fly and floor with fully-taped and waterproof seams
  • Ultra-lightweight 15D polyester high-airflow mesh for maximum ventilation and no-see-um insect protection
  • 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 Cords

Alto TR1 Lightfoot Footprint

Protect your Alto TR1 tent floor from abrasion, tears and dirt.


Alto TR1 Gear Loft

Stash gear within easy reach and off the tent floor.


Alto TR1 Bigfoot Footprint

Alto TR1