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Lightwave Tent  S15 Sigma Wilderness Green
Lightwave Tent  S15 Sigma Wilderness Green
Lightwave Tent  S15 Sigma Wilderness Green
Lightwave Tent  S15 Sigma Wilderness Green

Lightwave Tent S15 Sigma Wilderness Green



In 2016 Lightwave launched their first single-wall (single skin) trekking tents: the sigma range.

Single-wall tents have always been a rarity in trekking. The age-old problem of condensation has traditionally inhibited their mainstream use. The sigma range uses a new fabric technology that effectively resolves this fundamental.

The benefits of single-wall tents are three-fold. First, using the same pole-lengths as a double-wall tent, they are much more spacious: the gap between inner and flysheet becomes part of your internal space. Second, by disposing of the inner-wall, you are eliminating a lot of fabric and therefore, saving weight. Finally, they are simpler to pitch: there is no two-step process or need for any kind of connection between inner and flysheet.

As a consequence, not only are these new sigma tents incredibly light, but they are also extraordinarily spacious. These tents are optimised for trekking and feature a large porch for storage, easy access. Inside they have generous headroom making for comfortable living. Pitching is simple and quick, and the tents are virtually free-standing and require minimal pegging.

Persons: 1
Weight: 1.32 kg
Packed size: 50 x 15 cm

Length: 230 cm
Width: 95 cm
Height: 100 cm
Porch: 70 cm

Please note: photos show a Sigma S10 but the basic design is fairly similar.



75 g/m² 20d nylon ripstop
X-tex coating 20,000 mm hydrostatic head
Multiple guypoints
Continuous pole sleeves

The sigma tents are defined by the X-tex fabric used for the flysheet. This is unique to Lightwave and has an astonishing ability to manage the condensation that has plagued single-wall tent designs in the past. The X-tex fabric is heavier than most flysheets due to its coating, but the result is a hydrostatic head (i.e. waterproofness) that is far higher than the standard 3000-5000 mm found in nearly all tents. The coating always feels dry to the touch and is also quite light impermeable.

Porch wall
51 g/m2, 30d nylon 6.6 ripstop,
Silicone-coated on both sides, 5000 mm hydrostatic head

The porch of the sigma tents uses the same lightweight silicone-coated fabric used on the hyper and ultra ranges. Silicone-coated fabrics are the most durable and long-lasting available, particularly when minimum weight is also an important criterion.

75 g/m² 50d nylon taffeta
PU-coated with 5000 mm hydrostatic head
Bath-tub construction with reinforced corners and taped seams

The sigma groundsheet is made from a durable 50-denier taffeta (plain weave). The 50-denier fabric is a reasonable balance between the need to save weight and provide adequate protection from abrasion and moisture. We recommend the use of a footprint where it is appropriate – in other words, when you know ground conditions are going to be harsh, or weight being carried (a footprint is an additional 200 g) is not quite so critical.

Inner wall
25g/m2, 20d nylon 6.6 ripstop, DWR treated
Mesh window

DAC 9.35 mm Featherlite (aluminium alloy)

Lightwave use DAC Featherlite poles on the sigma tents simply because these have proved themselves time and again as the most reliable of the lighter weight alloys (i.e. - non 7001-T6 alloy which is employed in probably 90% of all backpacking tents in the world.)

Lightning pegs, 11 g each, square section
Flash pegs, 7 g each, rectangular section

Pegs are very important – without them, no tent could withstand anything more than the slightest breeze. Sigma tents use the Lightning peg – similar in weight to most standard pegs, but substantially stronger and capable of living with some serious abuse. Costing four times as much as normal wire pegs, these are seldom seen on all but the most highly specified and expensive tents. Supplementing these for non-critical peg-points are Flash pegs (which are literally “half a Lightning" peg).

2.00 mm nylon, 3 m length, Linelok adjusters

Sigma guylines are made of standard 2.0 mm nylon. They work, and with Linelok adjusters they work and adjust very well.


One of the benefits of single-wall tents is that they are easy and quick to pitch and take down. Effectively, the sigma tents are pitched “flysheet first” as this is the only way – there is no separate inner. The poles are inserted into the flysheet and sprung into place, and the tent is then pegged out.

Lightwave Tent S15 Sigma Wilderness Green

Product Code: EATNZ7TI0206

Key Features

  • Single-wall construction for low weight and quick pitching
  • X-tex fabric manages condensation for an always "dry to the touch" internal wall
  • Generous porch area with silicon-coated fabric flysheet
  • Multiple guypoints for stability in strong winds
  • Continuous low-friction pole sleeves for quick and easy insertion
  • Generous dimensions and internal volume
  • Supplied with 8 Lightning and 4 Flash pegs
  • Groundsheet has bathtub construction for complete protection
  • Comes with 4 x 2.5 m, and 2 x 1.5 m, 2 mm nylon guylines
  • Internal storage pockets
  • 8x 70001-T6 square-section alloy pegs, 12g each
  • 4x 70001-T6 half-section alloy pegs, 7g each
  • People: 1/2
  • Packed Size: 50 x 14cm
  • Total Weight: 1.3kg

Delivery Options

Delivery OptionAvailablePriceInfo
Home DeliveryFREEFREE Standard delivery within up to 10 working days on orders over £100
Collection£1.00Click & collect within up to 10 working days.

Read our full delivery & returns information here.

Reviews (1)

Ticks most of the boxes

Purchased this tent Nov 2020 and have thus far used 4 times in generally dry but cold/winter conditions. Pitching is quick and the design is drum-tight once pegged out. Condensation has not been a problem although there is some build-up but no worse than with a double skin tent. total weight is exactly what it states: 1.3kg which is very light for a roomy 4-season tent. The headroom is good and the internal room is excellent for one person. Porch size is adequate for rucky storage and cooking but it's not huge. I would prefer a full door opening on the inner wall rather than the half-door but that's a personal preference I suppose. My only gripe and a minor one at that is the door toggle loops which are too big and the elastic is like something from the 1960's! Oh and there's not enough either - I take a couple of clothes line pegs to hold the material in place. Overall I'm delighted with the tent and it holds its own with other quality 4-season tents. Expensive yes but you get what you pay for.

Richard InmanIlkley, West Yorkshire

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