The Mares X-One is a simple, rugged open-heel fin for snorkellers and warm-water divers who want easy performance at a good price. Its Channel Thrust blade flexes and channels water rearward for a soft, effective kick that does not tire you out.

A self-adjusting elastic strap makes the X-One quick to put on and pull off, in the water or on the boat. The foot pocket is perforated, so trapped water drains away fast and the fin stays light on your feet.

Its short heel and light build make the X-One an easy travel companion for warm tropical seas, though it works in temperate water too. For divers and snorkellers after dependable value, it is a straightforward pick.