do any of the other OR bivy's compare to...
do any of the other OR bivy's compare to this? or do they have condensation problems like most other bivys.
The Advanced, the Alpine and the Aurora Bivy all use Gore Respiration Positive membrane. They actually did tests when the zipped a person inside and monitored them with machines in a lab. VERY breathable. Probably the most breathable waterproof membrane that Gore makes.