When we tested for water-vapor transmission, almost all the jackets breathed very well. Our tests also showed that you don't have to pay top dollar to get good performance. When you're judging a jacket's ability to block water and provide good ventilation, don't get hung up on the number of layers in a laminate or whether a material is coated. Instead, consider how the garment is assembled. Gussets that make the jacket roomier and vents that open improve air circulation.
Pockets made of mesh instead of solid fabric provide another source of ventilation.
They're less likely to leak if they're sewn and tape is glued or sealed over the needle holes. A storm flap over the zipper or behind it provides extra protection. You should be able to secure the bottom of the jacket so a whipping wind can't blow snow or rain underneath.