I just received this and went right on my scheduled 20 mile run.The pack when full weights about 6lbs, which takes about 1/2 minute off your pace until you get used to it and begin to drink from the pack.I mixed 70oz of Cytomax with Endurolytes powder.The 70oz was enough for the 20 miles, but you will need to tank up again for full marathon.I would recommend filling up 1/2 for best results of weight vs duration depending on your access to water at 15 mile mark.If none is available this does the trick.
The package:
Lots of room for cell phone, drink mix, gu packs, camera, pair of dry socks. Two side pocket in front for quick access for needed items.It also allows you to change layers and store them on pack, which works for cold mornings that get warmer within a few hours of your run.
Pack stays on back without movement, but you will hear the liquid sloshing.I did not chafe on 20 mile run, and straps did not put pressure on shoulders with a thin tech shirt.This would be best for remote trail runs where you are away from any support (7-11, gas stations, fast food)
The fit:
The front has a clip for the hose.I found that it is adjustable and with a few tries was able to get it to stay put.There are two sliding clips on the front that allow for vest to remain comfortable.
The cleanup:
Imixed a mild bleach solution to clean out and dry. There are two holesat top to hang unit for drying.
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Nathan HPL #020 2.0 Liter Men's 2-Liter Hydration Race Vest (Flint Grey)Product Description: 3-way Propulsion Harness; 2 liter hydration bladder with filter-compatible screw-top closure and bite valve; Twin front holsters for carbo-gel and/or GPS; Two zippered rear compartments; Zippered front pocket; Lightweight, breathable Wall Mesh with soft perimeter binding - feels great against skin and won't damage technical apparel; Weight: 6 oz.
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This was an OEM replacement for my nalgene bladder and I'm extremely happy with it. I received the one I wanted (even though the picture shows a couple different ones)and yes, it came with an extra magnet. Now I don't have to switch everything between big pack and day pack. I really like the shut-off feature and the magnetic mount. Usually when I'm riding (or hiking,) I just spit out the bite-valve when I'm done drinking and it finds it's own way back to its holder, this is really convenient while riding on the trail.
