With its mummy-shaped envelope and Thermolite-Silk fabric, enhanced with stretch panels for added comfort, this Sea To Summit Silk Bend sleeping bag liner offers a softer and more luxurious feel. The presence of Thermolite thread ensures additional warmth, suitable for various temperatures. Rectangular in shape, the Silk Bend comes with a pillow sleeve. Composed of 72% recycled Thermolite and 28% natural silk, its fabric guarantees a quality experience!