The minimalist, four-season Black Diamond Twilight Bivy keeps weight to an absolute minimum and packs down incredibly small, ideal for an emergency shelter or as a sleeping bag cover. A zippered entry across the shoulders makes it easy to get into and use while sitting up.

• The ultimate harsh-weather bivy for minimalist mountain missions
• Reliable year-round performance
• Frameless construction minimize weight
• High-tenacity fabric improves strength and doesn’t stretch when wet
• Fully taped seams
• Complies to FR regulation CPAI-84