AfterShokz | Xtrainerz Color:Sapphire Blue Perforations under the midfoot and

Perforations under the midfoot and forefoot reduce weight and improve breathability

functional design: Eye-catching colors with a universally flattering fit

Perfect for warming up

including shin splints

Double-wall construction keeps fluids cooler 20% longer than other insulated bottles

AfterShokz | Xtrainerz Color:Sapphire Blue Perforations under the midfoot andTake open ear listening to new depths with Xtrainerz wireless MP3 headphones. Xtrainerz are an innovative solution for consuming audio in and out of the water while youre cross training toward your new PR. The open ear design removes the limitations of traditional swimming headphones, and the 4GB memory stores up to 1,200 songs, allowing you to take Xtrainerz on any adventure; no wires, no devices, no limits. (Not Bluetooth compatible).