- Product Specs: • Lightweight and compact sleeping bag liner • Compatible with most sleeping bags • Adds extra warmth and hygiene • Ideal for camping, backpacking, and travel - Technical Information: • Temperature rating: adds up to 15°F (8°C) warmth • Designed for use in 3-season sleeping bags • Easy to pack and carry with included storage sack - Fabric/Material Details: • Made from ultra-soft, breathable, and moisture-wicking Reactor fabric • Durable and quick-drying material ensures comfort • Hypoallergenic and gentle on skin - Fabric Care Instructions: • Machine washable in cold water • Tumble dry low or air dry recommended • Avoid bleach and fabric softeners to maintain fabric integrity