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Sea To Summit Ultralight XR Ins. Mat R

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Product details

Versatile and designed for demanding conditions: The Sea to Summit Ultralight XR Insulated Air Sleeping Mat Regular is the top choice for anyone on multi-day trips and remote camps. With its balanced ratio of weight, thermal performance, and comfort, this ultralight sleeping mat ensures restful nights—especially when recovery is crucial. The 151 Air Sprung Cells adapt to your body shape, reduce pressure points, and enhance sleep comfort—particularly for side sleepers. The ThermalCore insulation efficiently reflects body heat, achieving a reliable R-value of 3.6—without unnecessary extra weight. Whether you're covering many miles or setting up camp in alpine terrain, this insulated air mat provides dependable warmth when temperatures drop. Durability is ensured by the robust hybrid material made of 30/40D nylon with a TPU coating, proven in rugged backcountry use. Thanks to the Airstream pump sack and XPRESS valve, the mat sets up quickly and allows for precise firmness adjustment. For those seeking lightweight gear that performs across multiple seasons, it is a reliable sleeping solution.

Details:

  • Air Sprung Cells conform to the body for stability and high sleep comfort
  • Compact width and length for particularly lightweight sleep systems
  • Hybrid 30/40D nylon with durable TPU coating
  • ThermalCore insulation efficiently reflects body heat
  • Ultralight design with minimal pack size
  • Integrated Airstream pump sack for quick and effortless inflation
  • 6.5 cm thickness with individually adjustable firmness
  • XPRESS valve for inflation, fine-tuning, and quick deflation
  • PillowLock compatible for secure attachment of a Sea to Summit pillow

Weight: 415 g
Dimensions: 6.5 × 55 × 183 cm
Color: Arrowwood.

Key specifications

Sleeping mat equipment
Inflatable
R-value
3.6
Length
183 cm
Width
55 cm
Thickness
6.50 cm
Weight
415 g

General information

Item number
67395226
Manufacturer
Sea To Summit
Category
Camping mats
Manufacturer No.
045602
Release date
18.2.2026

Colour

Colour
Yellow
Exact colour description
Arrowwood

Material

Material group
Plastic
Material
Nylon

Trekking mat properties

Sleeping mat equipment
Inflatable
R-value
3.6
Mat size
Regular
Mat thickness
Comfort
Pack size
19 x 10 x 10 cm

Origin

Country of origin
Taiwan

Scope of delivery

Scope of delivery
Packing bagPump bagRepair kit

Product dimensions

Length
183 cm
Width
55 cm
Thickness
6.50 cm
Weight
415 g
Lenght (pack size)
19 cm
Width (pack size)
10 cm

Legal Notice

Product Safety

Package dimensions

Length
23 cm
Width
10.50 cm
Height
10.20 cm
Weight
534 g

Legal concerns

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Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Camping mats» category have a defect within the first 24 months?

Source: Galaxus
  • 1.Easy Camp
    0,3 %
  • 2.Sea To Summit
    0,6 %
  • 3.Therm-a-Rest
    1,2 %
  • 4.Normani
    1,4 %
  • 5.High Peak
    1,9 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • 1.High Peak
    0 days
  • 2.Outwell
    1 day
  • 3.Sea To Summit
    2 days
  • 4.Therm-a-Rest
    5 days

Return rate

How often is a product of this brand in the «Camping mats» category returned?

Source: Galaxus
  • 6.Easy Camp
    4 %
  • 7.High Peak
    4,1 %
  • 8.Sea To Summit
    4,3 %
  • 9.Therm-a-Rest
    4,4 %
  • 10.Nemo Equipment
    5,3 %
Source: Galaxus

Translation: machine translated
Very good90/100
outdoor Logo
Ranking 6 out of 15outdoorLeichtluftmatratzenReleaseJune 2026

Despite its relatively low thickness, the newly redesigned Ultralight XR from Sea to Summit provides excellent padding: over 150 small chambers allow an enormously even distribution of pressure without a flabby lying feeling. Cheaper than its predecessor and slightly warmer, the Ultralight XR Insulated Air wins the outdoor buying tip.