Ergonomically designed for rolling side sleepers, the Big Agnes Sidewinder SL 20 women's sleeping bag keeps you cozy and comfortable through every roll, turn and flop for a more restful night.

Features

• Ergonomically contoured, technical fit patterned to move with you as you roll from one side to the other, while ensuring warmth and comfort as you settle into position

• 650-fill-power DownTek™ insulation offers lofty warmth throughout with a PFC-free water repellent finish to keep you dry, even if when wet

• Body-mapped FireLine™ ECO synthetic insulation alleviates pressure points at the hips and feet while retaining optimized warmth

• Made from post-consumer recycled polyester, FireLine ECO maintains high loft, compressibility and durability with excellent weight-to-warmth ratio

• Ripstop shell fabric and smooth, polyester taffeta lining are treated with a PFC-free water repellent finish to help keep you dry and warm

• Jacket-style hood keeps insulation close around you without sacrificing mobility

• Stretchy mesh Pillow Barn built into the hood keeps your pillow in place; interior access from either side allows for easy adjustments

• Specially designed footbox mimics the shape and position of your feet while lying on your side for an optimized fit and thermal efficiency

• Smooth, antisnag locking zipper and zipper garage ensures no drafty cold spots

• Low-profile cordlock hood and insulated draft tube allow easy one-handed operation to seal out cold drafts

• Exterior loops allow you to easily hang dry or store bag when not in use

• Compatible with virtually every type and size of sleeping pad (not included)

• Includes storage sack and stuff sack for compact packing