2014 Triathlete Buyer’s Guide: Swim Accessories

Photo: John David Becker

TYR Flex Fins

$29, Tyr.com
The draw: Selectable resistance

Color-coded with eight different sizes, these flexible fins are designed to increase swim-specific leg strength and enhance foot flexibility—two skills that former runners typically need to improve. The fins are particularly wide at the tips, which can make flutter kicking without hitting the tips difficult, but butterfly kicking is a breeze.