AfterShokz | Xtrainerz Compressioin this bladder makes staying hydrated

this bladder makes staying hydrated easier than ever

No More Pain from Blisters

and travelers

Drink within the first 30 minutes after exercise

AfterShokz | Xtrainerz Compressioin this bladder makes staying hydratedTake 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).