Design and Details Contoured Spoon pattern and 3D footbox add comfort where you need it most. Tracer bag lineres are hardware-free for head-to-toe comfort. Thermolite Ecomade fabric is 100% recycled. Polygiene BioStatic antimicroboal fabric finish is bluesign approved and treated products can be recycled. Polygiene antimicrobial odor control finish inhibits odor-causing bacteria, allowing you to use more and wash less. Hollow core Thermolite Ecomade fibers efficiently trap heat for unmatched warmth-to-weight. Fabric: 650FP hydrophobic PFC-Free 100% RDS certified down Shell: 30D Nylon Ripstop w/ DWR Lining: 30D Nylon Taffeta w/ DWR