The popular NEMO Tango™ is luxury ultralight, merging the concept of a backcountry quilt with the shape of a rectangular bag, for a super-compressible, ultralight sleep solution that will keep you warm and comfy. The popular NEMO Tango‚Ñ¢ is luxury ultralight, merging the concept of a backcountry quilt with the shape of a rectangular bag, for a super-compressible, ultralight sleep solution that will keep you warm and comfy. 20D Nylon Ripstop shell and 30D Nylon Taffeta lining provide an ultralight, luxury sleep experience Backless design shaves weight for ultralight adventure Premium 650FP 100% Responsible Down Standard (RDS) Certified down offers packability and warmth while ensuring traceability and humane treatment throughout the supply chain Trapezoidal sculplting reduces dead air space to retain warmth