Here are an awesome bibpants which has a double coated SealSkin-material - rainwear on the inside as on the outside!
 
This is the lighter version of the bib pants which means there is no pocket and the design is different, especially on the back.
 
Specific features:
two sides coated fabric
double welded seams
seawater resistance
light and comfortable to use
elasticated braces
 
Norms:
EN ISO 13688
EN 343
 
Link to manufacturers web page.