With a women specific design and synthetic insulation, the full featured Marmot Women's Trestles 30 Degree Sleeping is designed for sustained cold, wet weather while backpacking, mountaineering and river rafting. Improved liner fabric plus updated style lines maximize comfort. SpiraFil 120 high loft insulation, EN tested. 100% polyester DWR, 100% polyester embossed DWR shell. 100% polyester embossed DWR lining. Dual zippers with two way zipper sliders and zipper guards. Insulated collar with easy access cord. Wave construction offers the advantages of both traditional blanket and shingle construction with no significant weight increase. Classic trapezoidal foot box. Compression stuff sack included. Feely draw cords. Hood draw cord. Second side zip. Snagless draft tube. Stash pocket. Two hang loops. Velcro free face muff. Regular or long length, left or right zipper.