Transform your sleeping setup with the NEMO Tracer Long Sleeping Bag Liner, a versatile piece of gear that pulls double duty as both a temperature-extending liner and a standalone sleep system for warm weather camping. Crafted from innovative THERMOLITE® EcoMade fabric made entirely from recycled hollow core fibers, this liner delivers exceptional warmth-to-weight performance while keeping your environmental footprint minimal. The antimicrobial FUZE™ technology with non-ionic silver keeps things fresh between washes, extending your sleeping bag's lifespan and reducing the microplastics released during frequent laundering. Whether you're adding precious degrees of warmth to your sleeping bag on chilly nights or traveling ultralight for summer overnights, the Tracer's ergonomic Classic Spoon shape contouring ensures maximum comfort for sleepers up to 6'6". At just 280g packed, it's the kind of multipurpose gear that earns its place in your pack by working harder so you don't have to carry more.