The MemBrain Strata material is super breathable, much more so than Paclite jackets that I've owned. Very light weight and packs small, huge front pockets and underarm vents, great arm movement and a comfortable collar. It's pretty baggy around the waist but it still hangs well. It would be nice to have an inner pocket since it only has the two fronts and a shoulder pocket. Worth spending the extra bucks on this one if you're also looking at the PreCip.