Quick answer: The Sherwood Onyx is a long-blade freediving fin sold in sizes from XX-Small (2/3) all the way up to 3X-Large (16/17). That size range is rare, and a real win for divers with big feet.
Long-blade fins move a lot of water with each slow kick, which helps you save energy. Most freediving fins top out well below a size 16, so if you've struggled to find a foot pocket that fits, this is one to check.
Pricing varies by size, so check your size on Scuba.com. Long blades take practice on entries and in tight spaces.
Check Availability at Scuba.com
Fat Guy Scuba Supply may earn a commission when you purchase through certain links on this page, at no additional cost to you.