Laadukas uintisnorkkeli mukavalla silikoni suuosalla uinnin sujuvaan tekniikkaharjoitteluun. Helps to learn freestyle while focus on correct movements in water instead of disturbing head movements to get air. Improves stroke and kicking technique by allowing right position in water. It also increase CO2-tolerance and breathing capacity. Make longer training distances of butterfly swimming possible. Silicone mouthpiece and purge valve for easy emptying of water. Soft and grip tight bracket with auto buckle silicone strap for quick adjustment and steady fit.