Shokz OpenSwim Color:Black Solid TreadBands are made of

Solid TreadBands are made of a lightweight

Soft dual density foam liner

Weighted for straight and fast shots even in windy conditions

Rev-Power Polymer Honeycomb Core | Deliver power with every shot

Center-Front Zipper

Shokz OpenSwim Color:Black Solid TreadBands are made ofTake open ear listening to new depths. OpenSwim (formerly Xtrainerz) is engineered with Shokzs signature open ear design and 7th generation bone conduction technology to ensure bud free, comfortable listening all day, in or out of the water. OpenSwim is completely waterproof and submersible, and features four gigabytes of MP3 storage, enabling athletes to train harder; no wires, no devices, no limits