Waterproof leather" Seriously" Why not. Aerostich has been doing it for years, and now we’re told they’re doing it even better.

Aerostich Press Release:
                     Transit 3 Waterproof Leather Jacket & Pants

The fit, feel and supple comfort of leather riding gear with revolutionary technology: Fully waterproof and breathable all-weather leather riding gear. This next-generation Transit 3 jacket and pants offers all the functional details and features as the originals, but its 1.2mm perforated, waterproof, breathable, seam-sealed leather is now even more supple, comfortable and ready to ride. It’s still just as durable, and as tough, and as waterproof.
Key detail updates include a larger zippered pocket on the right forearm, waterproof underarm vent zips, a fold-away reflective cover over the dual-slider back vent, and near-full circumference (270º) pant-to-jacket zipper.
The micro-perforated breathable leather contains a new proprietary treatment to keep it from absorbing water, so it never gets heavy during long wet rides, and always dries quickly. Micro-perforations across the leather ensures that during high activity skin moisture will evaporate right through. You ride dry and comfortable through rain, fog or misty conditions, and are noticeably cooler under a hot sun compared to wearing traditional leathers.
The suit contains a complete set of carefully fitted yet easily removable TF armor systems ? elbow...