Jimmy Elamwrote a review of Nathan VaporKrar 4L Hydration Vest on June 27, 2017
Familiarity: I've put it through the wringer
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After a 100+ miles of use, this pack has proven to be a very nice, light-weight running pack suitable for racing or other runs where minimal gear is needed. If youâre debating between two sizes, I would recommend sizing up (I am 6â 165 and went with the Large). The bottle design is great, and makes drinking on the go much easier than the traditional chest-mounted bottle systems, and even when running hard, bottle-bounce is relatively minimal. The pockets on the shoulders and on the front make stashing food/electrolytes very easy, although the pockets on the shoulders donât work well for a phone, which they appear to have been designed for. There is also a nice rear pocket along the bottom that makes stashing small items, such as gloves, without removing the pack easy. The downsides: The elastic straps that secure the bottle hoses are showing signs of wear, and the bottles seem to be of inferior quality compared to other hydrapak manufactured bottles (they still work, but the caps donât fit as well).