Whether you're extending your favorite sleeping bag's temperature range or seeking an ultralight warm weather sleep system, the NEMO Tracer Blaze Long Sleeping Bag Liner delivers dual-purpose functionality that serious outdoor enthusiasts demand. Crafted from THERMOLITE® EcoMade fabric with hollow core fibers, this eco-friendly liner provides exceptional warmth-to-weight performance while its FUZE™ antimicrobial technology keeps odors at bay trip after trip, reducing the need for frequent washing and extending your gear's lifespan. The contoured Ultralight Spoon™ shape ensures a comfortable fit whether you're using it inside your sleeping bag for added warmth or as a standalone sleep system for those balmy summer nights under the stars, making it an essential piece of kit for ultralight backpacking and warm weather camping adventures.