Mountain Hardwear Women's Bishop Pass™ 15F/-9C

The Mountain Hardwear Women's Bishop Pass 15F/-9C sits in the three-season down bag category, tested to EN 13537 with a -9°C comfort rating and -16°C limit — a wide enough spread to give some margin on cold nights without pushing it into winter-specific territory. At 1141 g with 700 g of RDS-certified 650-fill goose down, it is noticeably lighter than the -18°C Bishop Pass in the same line, reflecting the smaller fill weight needed for a milder rating. A warmth-to-weight ratio of 14 and weight-per-degree of 71.3 g put it among the more efficient bags in Mountain Hardwear's women's down lineup, useful context when comparing bags across temperature classes. The fitted, contoured hood and anatomical footbox add shape-specific comfort, while the women's cut (sized to 172 cm) and full-length draft tube target common cold spots. PFC-free DWR treatment on the 20D ripstop shell reflects a move toward more environmentally conscious finishes without sacrificing function. Zip-together compatibility rounds out a bag well suited to three-season backpacking and thru-hiking where weight matters but sub-zero winter performance is not required.