There are three types of trail runners, or so I thought, (1) hydration vests, (2) water bottles, (3) hydration belts, that was until  I tried the Nathan Elite 2V Plus.

By MPF Athlete Len Huffman
The pack - The Nathan Endurance hydration pack is the latest addition to the Nathan Hydration pack family, It is a vest style hydration pack that features a 70oz bladder. It  has 1 medium sized storage pocket that has a divider and is large enough for a light weight ,compact piece of clothing such as a winter hat or additional nutrition along with a cell phone, etc.