Sea To Summit Comfort Blend Sleeping Bag Liner - Rectangular Features: 30% Tencel Lyosel fabric with is a bio-based fabric with exceptional moisture wicking properties. Wicks moisture from your skin, keeping you dry and comfortable in humid conditions Spacious and comfortable rectangular shape for extended use trips Easy care – no special soap is needed for washing. Packs into its own Ultra-Sil stuff sack. HEIQ Fresh- Biocide-free odour control treatment.   Comfort Blend Sleeping Bag Liner - Rectangular