REI Co-op Zephyr 25 Recycled Sleeping Bag - Men's

The REI Co-op Zephyr 25 Recycled Sleeping Bag - Men's is a men's synthetic mummy bag with an EN ISO 23537-tested limit rating of -4°C and a comfort rating of +3°C. It's REI Co-op's flagship synthetic build for 3-season trekking, cut in a regular length for users up to 182 cm. The fill is recycled synthetic polyester in a shingled baffle layout, the shell is recycled polyester ripstop, and the liner is recycled nylon — both bluesign-approved. A draft collar and draft tube cut down on heat loss through gaps, and a trapezoidal foot box gives the feet room without adding unnecessary bulk. The bag ships with two sacks — a compression sack for the trail and a larger storage sack for long-term keeping. At 1219 g total, it's a mid-weight synthetic bag with a solid warmth-to-weight ratio for its category. The Zephyr 25 Men's suits spring-through-fall backpacking and camping where reliable synthetic insulation that still performs when wet is the priority over the lighter but moisture-sensitive alternative of down.