Nerd Belt NB600 Bottle QTY:4 x 300ml Bottles It easily mounts to your

It easily mounts to your bike or shoe and the dual band technology allows you to connect to and display data on both smartphones and GPS bike computers

Rims: 25mm external/21mm internal (width)

CORE is ready to grow with you

often producing better results

Smart trainer control

Nerd Belt NB600 Bottle QTY:4 x 300ml Bottles It easily mounts to yourTalk nerdy to me The original nerd belt, now supersized, is light weight and comfortable, holds your race bib, 300ml bottles and won't bounce around regardless of your pace! Perfect for long runs, marathons and Ironmans. Nerd belts are your new hands free way to carry fluids and nutrition during racing or training for a faster performance and recovery. Belt: UNISEX Adjustable strap to fit nerds big and small Race bib holder Minimal bounce at all paces