Sea to Summit Alto Plus Ultralight Tent

Product Features

The Sea to Summit Alto Plus is a semi-freestanding ultralight tent designed for 3+ season backpacking. It features a fabric inner tent that keeps out cold drafts and a high-specification waterproof floor rated to 2500mm hydrostatic head, suitable for wet and boggy ground conditions.

The Tension Ridge design raises the tent’s shape upwards, providing more usable head-and-shoulder space and creating truly higher doors for easier entry. The tent includes color-coded ultra-strong lightweight DAC NSL poles and quick connect pole feet for easy setup.

Product Details

Constructed with premium materials including DAC poles, YKK zippers, 7-series aluminium hardware, and a seam-taped PeU-coated rainfly. The 15 cm deep 20D nylon tub floor is ideal for wet conditions, while the lightweight 20D ripstop nylon inner tent fabric keeps out drafts. The rainfly is made of silicone/polyether polyurethane-coated 15D nylon.

Features include an Apex Vent for condensation control, Baseline Vents for airflow management, and a FairShare storage system that packs into 3 stuff sacks. The tent includes 9 Ground Control Light Tent Pegs and 4 removable Ground Control Guy Lines.

Package Contents

Tent, Rainfly, DAC Poles, 9 Ground Control Light Tent Pegs, 4 Ground Control Guy Lines, 3 Stuff Sacks.

Packed Weight:
TR1: 2 lb 11 oz (1228 g); TR2: 3 lb 3.4 oz (1458 g).

Minimum Trail Weight:
TR1: 2 lb 5 oz (1056 g); TR2: 2 lb 12.9 oz (1274 g).

Packed Size:
TR1: 4 × 18 in (10 × 46 cm); TR2: 5 × 21 in (13 × 53 cm).

Floor Dimensions:
TR1: 84.5 × 42 × 24 in (215 × 107 × 61 cm); TR2: 84.5 × 53 × 38 in (215 × 135 × 97 cm).

Floor Area:
TR1: 19.5 ft² (1.81 m²); TR2: 27 ft² (2.5 m²).

Vestibule Area:
TR1: 7.5 ft² (0.7 m²); TR2: 18 ft² (1.7 m²).

Peak Height:
TR1: 42.5 in (108 cm); TR2: 42.5 in (108 cm).

Pole Diameter:
TR1: 8.7 and 9.5 mm; TR2: 8.7 and 9.5 mm.

Fly + Footprint Pitch Weight:
TR1: 1 lb 11.3 oz (781 g); TR2: 2 lb 2.2 oz (971 g).