The double strap made of anti-allergic silicone ensures good grip of the glasses

Schrader Valve Extremely air-tight

increased field of vision for spotting landmarks and buoys during your swim

Bearing Type: Triple Sealed Cartridge & Needle Bearings

BATTERY Powered by included lithium ion rechargeable battery (18650

SPEEDO Ergo Earplug Silicone Swimming Ear Plugs Unisex Color:BLUE The double strap made ofTo prevent water from entering the ear canal while swimming indoors or in the open, it is recommended to use Ergo earplugs. This way you can fully concentrate on your swimming training without having to worry about a thing. The light blue earplugs by Speedo are easy to use, fit securely within the ear canal and reliably keep away water. The soft plugs with two seal rings and an ergonomic design perfectly adapt to the shape of your ear canal without