NEMO Tensor Extreme Conditions vs Sea to Summit Ultralight XR Insulated (Short)
Weight and specs compared for 2026 — and which one to choose.
Four-season insulated air pad delivering an 8.5 R-value at just 17oz. Among the lightest extremely well-insulated backpacking pads. Regular mummy.
Ultralight insulated sleeping pad at 13.8 oz (390g) for 66-inch length with 3.6 R-value, lightest inflatable option available.
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
NEMO Tensor Extreme Conditions vs Sea to Summit Ultralight XR Insulated (Short): which should you buy?
The listed weights alone are not enough to choose between these products. Confirm the size, included parts and weight basis against each source; choose equipment for the function and fit you need.
See where both rank against everything else in this category on the lightest sleep system page, or browse the full gear weight database.