Breathable Waterproof Trainers for Yacht Deck Crew

I'm looking for a specialized footwear solution for deck crew on yachts. The trainers must be both waterproof and breathable, designed to withstand the rigors of cleaning, maintenance, and navigating the yacht... (Budget: $30 - $250 NZD, Jobs: Fashion Design, Industrial Design, Manufacturing, Marine Engineering, Market Research, Materials Science, Product Design, Product Development, Prototyping, Textile Engineering)