• Western Mountaineering ExtremeLite 38° NanoLite

Western Mountaineering ExtremeLite 38° NanoLite


  • Insulated draft yolk
  • elastic lacing bottom closure
  • flat elastic pad straps for pad attachment
  • 850+ fill power down
  • Made in USA
  • 7d shell fabric/10d liner

Fans, customers, and dealers alike have been asking us about quilts for years and finally the answer is here: the AstraLite & NanoLite. These quilts are a thru-hikers dream. Constructed with proprietary 7 denier acrylic kiss coated fabric and Western Mountaineering's world famous 850+ fill down they've created products with stellar weight savings. These quilts are capable of attaching to any backpacking sleeping pad using two flat elastic loops for maximum grip. To avoid drafts through the bag, the NanoLite & AstraLite feature a elastic laced bottom closure that can be adjusted to fit multiple widths. Other features include a sewn through footbox and an insulated draft yolk with elastic closure for maximum heat retention.

Because the NanoLite is hoodless, it is important to pack adequate head insulation. The NanoLite is designed for above freezing so a beanie and neck gaiter will do. AstraLite users should consider bringing a hooded puffy along if temperatures are likely to dip below freezing.

This quilt is designed to be used with an insulated sleeping pad. If you sleeping pad is uninsulated or poorly insulated these products will sleep much colder than intended. Make sure to check the R value of your pad to ensure it is adequate for 3 season use.

The NanoLite come in two lengths; the 5’8″ version is design for people at or below 6’0″ tall and the 6’4″ version is design for people between 6’0″ and 6’6″.