Innovation in simplicity. That’s the main concept behind the Proton Blanket from Thermarest. It’s a lightweight, waterproof, breathable, synthetic blanket that can be used around the campfire, outside of the tent, or cinched up into a quilt for sleeping in warmer weather. The blanket is built from high end EraLoft synthetic insulation. It’s a waterproof, … More Thermarest Proton Blanket Review