Bianchi Accumold gear has been my choice for the field for many years now. It literally is waterproof (not that I scuba patrol in it) and is somewhat lighter and cheaper than its leather counterpart.It requires no polish or recoloring after long periods of use. The only place I see regular wear is trim piece that goes around the edge of the case flaps or mag pouch flaps, which tends to separate from item after a while. The other issue is that it doesn't look quite as much like leather as the real thing.
Pros: tough, light
Cons: a little synthetic looking
This review was written in the old system and had content requirements that are different than reviews written today.