Adjustable Heel Swim Fins Perfect for Snorkeling and Water

Size reference: /: 4-8 (), 36-41 (), 22-25 () / /: 9-13 (), 42-47 (), 26-29 ().;Sturdy side rails to channel water & pre-bent design for a natural kick.;Soft foot pocket with easy-to-adjust strap. Perfect for snorkeling or swimming.;Soft short blade and elastomer foot pocket able to be put on quickly and easily.;Accommodates 4-5 consecutive sizes and can be worn over thin footwear.