The Aotrom Thermo upgrades our standard ultralight Aotrom sleep mat with improved fabrics and a hollow fibre insulated core to retain more heat and keep you comfortable in harsher conditions. The base fabric is swapped out for our ThermoFlex® fabric that features an aluminised coating to reflect heat back to your body. The Single Hole Siliconised Hollow Fibre insulated core adds further warmth by insulating your body from the ground and retaining heat within it's structure. Our unique Air Filled Welded Channels mould to the contours of your body for a more comfortable sleep whether you're a back or side sleeper. And most importantly we've keep the ultralight design making it ideal for bikepacking and lightweight adventures.Vango Aotrom Thermo 5 Standard Features: ThermoFlex Fabric – 70D nylon Ripstop base fabric features ARC - Advanced Reflecting Coating which helps retain heat when in use to protect you from the cold ARC Technology - Our Advanced Reflective Coating technology works by reflecting heat back towards your body without impacting breathability or comfort. With a soft and flexible finish, ARC boosts thermal efficiency to keep you warm as temperatures fall. 20D 380T Nylon Ripstop Fabric – Extremely lightweight and durable construction applied to the top and bottom of the mat, making it ideal for those that require long lasting and lightweight trekking equipment Single Hole Siliconised Hollow Fibre Core - Adds warmth by insulating the body from the ground while retaining compressibility, ensuring warmth, comfort, and a small pack size Air Filled Welded Channels - Which mould to the contours of the surface and your body for a more comfortable sleep TPU Lamination Technology - Modern TPU fabric lamination is lighter and more environmentally friendly than traditional PVC constructions. The result is a smaller pack size thats quicker and easier to inflate, deflate and pack away Flush Fit TPU Airlock Valve - Quick inflation/deflation with secure lock system when not in use ASTM F3340-18 Certified - Extensively tested to meet industry standard temperature ratings