How Much Water to Carry on a Trail Run
A planning baseline by hour, how to measure your own sweat rate, and the weight cost of carrying too much.
Hydration and Vests
How much water to carry, how to carry it, and how to pick a vest that does not bounce for eight hours.
Almost every runner either overbuys capacity or underestimates fluid. These guides fix both, starting with the vest buying pillar.
Start here
How to Choose a Running Vest
Capacity by run duration, fit and bounce, flasks against a bladder, pocket layout and mandatory kit requirements.
Read the guideMore in hydration and vests
Best Running Vests for a 50K
What a 50K actually demands from a vest, and why plenty of runners finish one in four litres.
Gear referenced in these guides
Affiliate links. See the disclosure.
Nathan
Nathan Pinnacle 12
Long training days when you want capacity without the flagship price
Check priceUltimate Direction
Ultimate Direction Race Vest
Racers who want a minimal cut and front-loaded storage
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