HeatCore 3.8R Large

Double foil insulation delivers exceptional warmth for three-season use. Lightweight and compact construction. R-value = 3.8 (-9°C). Thickness of 7cm. Pump sack included.
  • Double foil insulation for superior warmth to weight ratio
  • High insulation for three-season use
  • Ultra lightweight construction
  Pre-order now, expected in stock: 02/03/2026
RRP 140.00
£120.00
  • Icon for payment method
  • Icon for payment method
  • Icon for payment method

Free delivery over £600 - low shipping £9,99

The Robens HeatCore 3.8R Large mat is designed for superior comfort and performance during outdoor activities. Offering high insulation for three-season use, it features double foil insulation that ensures an exceptional warmth-to-weight ratio, making it a practical choice for reliable support. Constructed with lightweight materials, the mat includes innovative Robens Peak Valve technology for efficient inflation and deflation, as well as an increased number of smaller air chambers that enhance stability without adding bulk. A lightweight pump sack and carry bag are included for convenience, and the product is PFAS-free, ensuring eco-friendly usage.

Fabric
20D 380T nylon with ripstop, TPU coated
Size
191 x 61 x 7 cm (LxWxH)
Filling
Two layers of foil lining
Valve
Peak Valve
R-Value
3.8 (-9°C)
Colour
Blue
Textile Fiber Composition
Fabric 100% nylon, Pump sack 100% nylon Carry bag 100% nylon
Pack size
25 x 9 cm
Weight
455 g
EAN
5709388160614
Number
310143

  • Double foil insulation for superior warmth to weight ratio
  • High insulation for three-season use
  • Ultra lightweight construction
  • Robens Peak Valve with one-way technology and very high airflow properties
  • Increased number of smaller air chambers enhance stability and support while reducing overall thickness
  • Lightweight pump sack included
  • Carrybag included
  • PFAS-free