Unisex Nerd Belt NB400 Groove Colour:Black it’s a great option for

it’s a great option for runners looking to transition toward Altra’s zero-drop shoes

the Mountain Vesta 6

for better grip and durability

- Engineered mesh is tweaked with a more forgiving forefoot for maximum breathability and support

Unisex Nerd Belt NB400 Groove Colour:Black it’s a great option forThe all new nerd NB400 Groove is a streamlined, lighter weight evolution of Nerd best selling NB600 Groove hydration belt. A lightweight, comfortable, and completely zero bounce hydration solution. Marathon and IRONMAN tested and approved hydration system. The ultimate hands free solution for carrying fluids, fuel, and race day essentials. Refreshed with an upgraded lock down strap, advanced materials, and an expanded storage pouch, the NB400 Groove