No special athletic water sports skills are required to snorkel and dive with this fin. Nevertheless, it offers excellent performance without tiring the feet. Thanks to the latest technologies and Cressi's experience, the development of these products has successfully reduced the weight compared to a fin of the same category while maintaining outstanding responsiveness. The shoe features the innovative Self Adjusting Foot Pocket system, which ensures a consistently comfortable and snug fit due to the special softness and elasticity of the material blends.