Not a fan of full foot fins with modern materials, better suited to rubber, also size 15 feet.
Take a look at TUSA Hiflex switch
They come apart for travel and there are some color combos you can do for fun and also to identify yours from others. The pro blade is very good or the tri force for a little more tech type blade. Piece them together through picking and choosing on Amazon (handy to try different foot pockets, return those that don’t fit) and eBay, I was able to put these together for less than $150 per pair with the bungee straps which are easily adjusted so they work with thin neoprene booties for warm water, and rock boots at home for cold water drysuit diving.
Take a look at TUSA Hiflex switch
They come apart for travel and there are some color combos you can do for fun and also to identify yours from others. The pro blade is very good or the tri force for a little more tech type blade. Piece them together through picking and choosing on Amazon (handy to try different foot pockets, return those that don’t fit) and eBay, I was able to put these together for less than $150 per pair with the bungee straps which are easily adjusted so they work with thin neoprene booties for warm water, and rock boots at home for cold water drysuit diving.