SIZING. Full foot fins are sized according to your normal shoe size. Your feet should fit the fins snugly, not too tight or too loose. On some models where sizing of the fin is across several sizes (38.5-39.5 for example), your toes may or may not stick out from the end of the foot pocket.
What size swimming fins do I need?
US SIZES EURO SIZES
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SMALL 4-5 37
MEDIUM 6-7 39
MEDIUM LARGE 8-9 42
LARGE 10-11 44
What size training fins should I get?
Shoe Size Start by choosing fin size based on your shoe size. If you wear a size 10 in your daily shoes, begin with a size 10 swimming fin. Upon receiving your fins, or during your visit to a Kiefer Swim Shop, make a visual comparison by aligning the sole of your shoe with the sole of your fin.
What size is XL fins?
How should short fins fit?
https://www.youtube.com/watch?v=x64M_eXQThQ
What is the purpose of Zoomers?
The Zoomers® Gold fins provide an improved foot pocket formulated from soft natural rubber for increased comfort. The short blade encourages shorter, faster kicks for additional propulsion through the water. The Zoomers® Gold Fins are an ideal training fin for cardiovascular conditioning and speed training.