The lightest, most compact, self-inflating, mattresses available. Ideal for those who need a mat with minimal weight and volume. • Efficient Warmth: Diagonal cut channels in the foam reduce the bulk and retain heat better than straight-cut foam. • Highly Compact: Ultra light, diagonal-cut Atmos™ Foam and a tapered shape keep the ProLite™ mattress extremely compact. • Self-Inflating: Expanding foam core self-inflates. • Stuff Sack included.