SOL Escape Bivvy Vs. Sea to Summit Thermolite Reactor Series 

At $50 and only 8 oz the SOL Escape Bivvy simply out performs the Sea to Summit Reactor Series ranging fro $60-$85 and 8 oz - 13.4 oz. Though crinkly the material is very breathable. For those who can't stand the noise and feel of the material then the Reactor Fleece is worth looking at.