Maru fins maru short blade fin blue lime super-soft short blade fins built for smarter kick development. A super short fin from maru, made from 100% silicone, offering a lightweight construction 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. Designed for resistance and propulsion, these fins work hard in training to improve leg strength without overloading the ankle joint. Train smarter, kick better. 100% Silicone short blade ankle flexibility leg strength lightweight training essential 3 key features short blade design the short blade promotes a correct kicking action by encouraging ankle flexibility rather than relying on the fin to do the work. It keeps your kick tight and efficient, which translates directly into better technique in the water. Ideal for swimmers at all levels who want to develop a strong, effective kick. High grade silicone constructed from 100% high grade silicone, these fins are built to withstand regular pool use session after session. Silicone holds its shape and softness far better than rubber alternatives, meaning the fit stays consistent over time. The material is also gentle on skin, reducing the risk of rubbing during longer training sets. Resistance and propulsion designed specifically to provide the right balance of resistance and propulsion, these fins add load to your kick without masking poor technique. Using them consistentl...