S/M is for US 4.5 to 8.5, L/XL is for US 9 to 13
Short fins measure 16" long and are ideal for swimming, snorkeling and diving. DRAIN HOLES :special drain holes design Rapid drainage to reduce resistance Effectively and improve diverís diving speed during diving in deep-sea.
Full foot pocket: Open-heel snorkel trek fins , short fins , able to be put on quickly and easily. swim fins with soft foot pocket enable the users wear comfortable when swimming in pool during their vacation and other exercise time.
PREMIUM QUALITY MATERIAL: Fins with rigid keels and a flexible middle made of PP and TPR will keep your foot comfortable and provide more thrust power, while reducing friction and chafing.
ANTI-SKID DESIGN: before diving or after diving, the Anti-skid pad of the fins bottom ensure your safety when you stay in deck or Slippery ground . We guarantee that you purchase is a happy experience. Please tell us if there is any problem ,so that we have the chance to fix it.