Sea to Summit Alto TR2 PLUS

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As low as €658.95
Including V.A.T.
More Information
Weight 1250 - 1500g
Season 3-Season
Capacity 2-Person
Tent type Dome tent

Quick overview

The Sea to Summit Alto TR2 Plus is a semi-freestanding two-person tent perfect for the weight-conscious backpacker who still wants a high degree of livability in their shelter.


The revolutionary Tension Ridge architecture of the Alto TR2 Plus allows for taller oversized doors and vertical walls that create an unrivalled amount of space. Apex Vents positioned at the highest point of the tent effectively expel moist air and minimize condensation, and the variable rainfly can be rolled back on both sides for stargazing, then deployed quickly from inside the tent. The Alto TR2 Plus is engineered for end-of-season weather with a nylon fabric inner tent and uprated floor compared to the regular Alto tents.  


  • Made for 3+ Seasons with a fabric inner tent which keeps out cold drafts. Plus a higher-specification waterproof floor, suitable for the wetter ground conditions
  • Tension Ridge raises the tent’s shape upwards for more usable head-and-shoulder space and creates truly higher doors for easier entry and more vestibule storage
  • Color-coded ultra-strong lightweight DAC NSL two-hub poleset and quick connect pole feet make for easy setup
  • Made for longevity and to be waterproof by using premium materials including DAC poles, YKK zippers, 7-series aluminum hardware and seam-taped PeU-coated rainfly
  • Hangout Mode converts rainfly into semi-open shelter. Requires a pair of trekking poles or Hangout Mode Pole Set
  • FairShare storage system: tent packs into 3 stuff sacks to split the load. After set-up, stuff sacks transform into gear storage pockets
  • Lightbar: add a headlamp and secure the tent pole storage sack to the apex of the tent for soft even illumination
  • Rainfly can be setup first for a dry setup and takedown
  • Includes 8 Ground Control Light Tent Pegs
  • 4 detachable guylines which can be quickly attached to loops on each tent corner
  • To extend the life of your tent floor we recommend using a Sea to Summit footprint - sold separately

Construction & Materials

  • The 6” deep 30D nylon tub floor is rated to 8000mm hydrostatic head – ideal for wet and boggy conditions
  • Lightweight 20D ripstop nylon inner tent fabric keeps out drafts and spindrift
  • Silicone / Polyether Polyurethane-coated 15D nylon rainfly fabric provides long-lasting waterproof performance
  • The poles of the Tension Ridge are swept upwards – not angled downwards as is common in tents. This raises the tent’s shape, providing significantly more livable space
  • Apex Vent - at the highest point of the tent, this oversized vent efficiently expels warm air to prevent condensation and can be easily zipped shut from inside the tent
  • Baseline Vents allow you to control airflow and effectively manage humidity and condensation in wet conditions without letting the rain in
  • Quick Connect Foot is a beautifully designed, machined aluminum clip that attaches the pole and the inner foot with ease and is stronger than plastic buckles that can break

Sea to Summit Alto TR1 TR1 Plus TR2 TR2 Plus
Capacity 1 1 2 2
Floor area (m²) 1.81 1.81 2.5 2.62
Floor dimensions (cm) 215x107x61 215x107x61 215x135x97 215x135x109
Fly+Footprint pitch weight (g) 781 781 971 1199
Minimum trail weight (g) 938 1056 1156 1531
Packed size (cm) 10x46 10x46 13x53 15x48
Packed weight (g) 1110 1228 1340 1706
Peak height (cm) 108 108 108 110.5
Pole diameter (mm) 8.7 and 9.5 8.7 and 9.5 8.7 and 9.5 9.6 and 9.5
Vestibule area (m²) 0.7 0.7 1.7 1.8
Seasons 3 3+ 3 3+
Pole material Aluminum DAC TH72M
Rain fly fabric 15-denier ripstop nylon
Floor fabric 15-denier ripstop nylon 20-denier ripstop nylon 15-denier ripstop nylon 30-denier ripstop nylon