Spark SPIII, -8C / 18F, Reg < 40% 60 hours on Low (50

60 hours on Low (50 lumens)

The Spark™ Ultralight Mummy Sleeping Bag Series spans everything from an ultralight down-filled liner to a mid-winter fast-and-light sleeping bag

the 200 Oasis Legless are Icebreaker's ultra-comfortable base layer bottoms that make the perfect foundation for your everyday cold-weather layering system

and engaging

Spark SPIII, -8C / 18F, Reg &lt; 40% 60 hours on Low (50The Spark Ultralight Sleeping Bag Series spans everything from an ultralight down filled liner to a mid winter fast and light sleeping bag. Each model uses premium materials and no frills design to provide cutting edge performance for the designed end use. Ultralight does not mean ultra tight: The Spark sleeping bags are snug but still have adequate girth for the performance oriented backcountry user.