The diminutive, ultralight and weather-resistant E-Bivy sack can be tossed into a pack lid on any trip, providing essential protection for an unplanned night in the hills, or added warmth and comfort when used under tarps or on open bivies. Its silicone-coated fabric top blocks wind, dew, spindrift and precipitation, making it the perfect emergency shelter.\n\n- Ultralight: Ultra-packable & ultralight emergency shelter is easy to take with you\n- Reliable: Durable bivy offers warmth & weather-resistance when you need it\n- Protection: Silicone coated fabric top; Xtreme Shield™ waterproof floor