Nerd Belt NB600 + 2x300ml Bottles

The NB600 with two 300ml bottles upgrades your fluid capacity with bigger soft flasks while maintaining the belt’s slim profile. The NB600 builds on the NB400’s lightweight fit but ups your carrying capacity with a wider belt and more storage pockets. It comfortably holds two 300ml bottles, plus small essentials like gels, keys, or a phone.

Made with stretch fabric and breathable mesh, it stays stable and sweat-free over longer distances. Whether you’re training for an ultra ironman or need hands-free hydration on trail runs, the NB600 balances volume with sleek comfort.