Maru fins maru short blade fin purple blue lightweight silicone training fins built for ankle flexibility and correct kick technique. A super short fin from maru, made from 100% silicone, offering a lightweight build with a super soft, comfy fit suitable for regular use. The short fin design promotes ankle flexibility and supports the development of a correct kicking action. High grade silicone construction is designed for resistance and propulsion, helping you build leg strength with every session. Kick smarter, kick stronger. 100% Silicone short blade design ankle flexibility leg strength regular training use lightweight fit 3 key features short blade for better technique the short blade design is specifically suited to swim training, encouraging a correct kicking action rather than masking poor technique. Unlike longer fins, the reduced blade length keeps your kick tempo close to natural swimming speed. This makes them ideal for developing efficient leg drive over time. High grade silicone construction maru uses 100% high grade silicone throughout, giving these fins a super soft, comfortable fit that works well across repeated sessions. Silicone is more durable and skin-friendly than rubber alternatives, and it holds its shape session after session. The material also provides the right balance of resistance and propulsion in the water. Builds leg strength and ankle flexibility designed for resistance and propulsion, these fins give your legs a productive workout withou...