Kelty Light Year XP Women&#39;s 20-Degree Long Climashield XP Sleeping bag 20 F/-7 C Mummy Insulation: Climashield CP. Shell: NPR241T nylon-polyester diamond cross-dye ripstop. Liner: P300T polyester microfiber pongee Two-layer, offset-quilt construction and efficient from-fitting hood. Top baffle collar and insulated hood baffle Women's specific design