Aftershokz Trekz Air Headphones Colour:Midnight Blue Trekz Air are inspired by

Trekz Air are inspired by the demands of elite and aspiring athletes motivated by their music and their world

The two layers within the sock means that if there is any friction

in both rearfoot and forefoot

and BPA-free materials

The Grid has been designed for athletes and people of all types - from long distance runners and endurance athletes to gym and yoga enthusiasts

Aftershokz Trekz Air Headphones Colour:Midnight Blue Trekz Air are inspired byThe next generation of bone conduction technology is whats inside our lightest and most organically designed open ear headphones to date. We cut the bulk and used titanium everywhere possible to ensure they not only fit more securely but sound better too. Trekz Air are inspired by the demands of elite and aspiring athletes motivated by their music and their world. Features Bone conduction technology delivers music through your cheekbones, ensuring