[$420]
When packed down this teeny tiny minimal Spark sleeping bag from Sea to Summit is about the size on an apple! But don't despair it packs a punch for it's size with an amazing warmth to weight ratio, using 850+ loft Ultra-Dry Down and weighing in at 12.3oz / 348g it's temperature rating is 46 F / 8°C so more suited to summer/spring/autumn uses like adventure racing, summer cycle touring, ultra lightweight hiking and ultra lightweight alpine climbing.
