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Big Agnes 2020 Insulated Q-Core SLX Long Wide Sleeping Mat

ASTM R-Value: 3.2 / Dimensions: 198 x 64 x 11cm / Packed Size: 10 x 22cm
Weighs 690g (excluding bag)
Code: SS206506
  • Now £164.99
  • (FREE UK & EU Delivery)
+ In Stock Now | Usually dispatched within 24 hours
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Designed with a quilted top, larger outside tubes and high-volume valve for quick inflation and deflation, the 3-season Big Agnes Q-Core SLX Pad packs fast, light and small without sacrificing comfort. 

Big Agnes says:

Completely redesigned from the inside out and R-Value rated by a third party, the Q-Core SLX is lighter, tougher, easier to inflate/deflate, packs smaller and sleeps warmer with PrimaLoft® Silver Insulation. The Q-Core SLX ups the ante on quilted comfort in the backcountry with offset I-Beams that create incredible multi-directional support and stability. When it comes to superlight, three-season comfort, this pad stands alone. Save your breath for the miles ahead, and use the included upcycled pad inflation sack to inflate.

The superlight and compact Big Agnes 2020 Q-Core SLX sleeping pad is ideal for lightweight backpacking. Designed for 3 season use, the pad features an upgraded layer of PrimaLoft Silver insulation with a heat reflective film. This durable, high-loft synthetic insulation provides exceptional warmth with minimal weight and bulk.

It has similar features to the Insulated Air Core Ultra mats but with a luxurious additional 3cm depth on the outer chambers which will keep you cradled in the middle so you don't roll off in the night. It also has a quilted top to provide a cushioned pillowy sleeping surface, as comfortable as your bed at home. And somehow it's even lighter.

Durable I-beam construction provides stability while reducing weight and bulk. All the latest pads from Big Agnes have received an updated air valve for easy one-way inflation and convenient, super-fast deflation.

- Reviewed by BasecampGear

  • 3.5” thick pad with 4.25” larger outer chambers keep you comfortably cradled in the middle of the pad
  • PrimaLoft Silver Insulation and a heat reflective film create a dynamic convection system; trapping heat and transmitting it back to the user, preventing heat loss
  • Quilted top provides a cushioned pillowy sleeping surface
  • High volume valves with micro adjustments make for fast inflation/deflation and easy fine tuning to your preferred firmness
  • Quieter materials than other pads on the market
  • Antimicrobial treatment inside the pad prevents microorganism growth
  • Protective storage sack, replacement valve seal and 3M repair patches included
  • Individually inflated and tested at our factory ensuring 100% quality performance
  • Pad Inflation Sack made from upcycled excess pad material included. (Color will vary depending on excess material)
  • When sleeping on frozen ground or snow we recommend adding a closed cell foam pad
SpecificationConstruction + Materials
  • Weight: 690g (excludes inflation sack & storage bag)
  • Inflation sack weighs: 106g
  • Dimensions: 25" x 78" / 64 x 198 cm
  • Thickness: 11cm (outer), 9cm (inner)
  • Packed size: 10 x 22cm
  • ASTM R-Value: 3.2
  • Durable, superlight double rip-stop nylon
  • PrimaLoft® Silver Insulation working with a heat reflective barrier traps body heat and reflects it back, so you stay comfortable as the temperatures drop
  • Proprietary offset I-Beam construction reduces weight and provides consistent stability and comfort
  • Aviation-grade TPU lamination provides ultimate weld strength and dependability

ASTM R-Value:

From 2020, there is a new industry standard for measuring the R-value (level of insulation) of sleeping mats – ASTM F3340-18. This new standard is the sleeping mat equivalent to the EN rating for sleeping bags.

You can now directly compare the R-value of mats rated using the ASTM F3340-18 with confidence that is a fair and accurate comparison between mats. In simple terms, the higher the R-value, the warmer the mat.

In general terms, an R-value below 2.0 is for summer use, 2.0 to 4.0 is for cooler 3 season use and 4.0+ is for winter temperatures. This will be also be dependent on your sleeping bag, how cold you sleep etc. Please contact our customer service team if you need advice on choosing the right mat for your activity.

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