Long distance runners

For runs of less than two hours, I highly recommend the Amphipod Hyrdaform 20oz handheld bottle. It's so comfortable and has a zippered pocket for a key or a gel.
http://www.amphipod.com/products/hydration/bottles-handhelds/handhelds/hydraform-handheld-pocket

For long runs, I would use a pack with a reservoir. There are many and it really depends on your goals. I like the Ultimate Direction PB Adventure Vest 2.0. It has a 2 liter reservoir plus two 20oz bottles up front. Tons of storage too. Come race day, just take the reservoir out since the bottles will easily get to you to most aid stations depending on the race. It's a bit pricey, so you can always use any old Camelbak that is on sale.
http://www.runningwarehouse.com/Ultimate_Direction_PB_Adventure_Vest_20/descpage-UDPBAV2.html

Anyway, you WILL need to have a hydration plan if you go long, so plan! )

Hmmm I never take water on any runs, I too hydrate before & after in my HM only drank one little cup of water & one Gatorade at the stops I find it hard to drink & run...now drink & drive much easier

I prefer to pull a wagon behind me with assorted drinks, etc

Ha! There is actually an ultrarunner who lives near me and pushes a jogging stroller on his long runs to hold water / supplies. He is a male model so is super concerned about his skin. Even mid-summer he runs in long sleeves and a wide-brimmed hat. I can only imagine what sort of exfoliants/moisturizers he totes along in his stroller.

I ALWAYS carry water if it occurs to me that I might want it. Depending on the race and conditions I will also carry my hydration pack. What can it ever hurt to be prepared during a training run? I also carry gu and SCAPS for runs over 90 minutes if it is hot.

You can get a camel bak.

I can run 6.2 miles without needing a drink unless it's really hot like it's going to be today. but I have a Nathan speed 2 fuel belt so I have two water bottles I carry on my belt that I hardly notice while running. I find that when I pushed my run to 9 miles, I needed it, so in the near future I'm going to buy two add on water bottles to carry 4 bottles and since summer is coming, I'll need it regardless how far I run. it gets pretty warm for running in San Diego. plus I use them also to pour on me to keep me cool.

I have a small water bottle that I clip to my spibelt. Then I plan my routes near parks with drinking fountains or gas stations where I can refill it. But I agree with most posters here, I don't even really need it for runs 6 miles or shorter.

I have a Nathan Fuel belt that holds two 10 oz bottles and has a roomy pouch for keys/gels/ID/etc. It's convenient and I use it for any run that approaches double digit mileage OR when it's crazy hot outside for mileage over 8. Each runner is different. I also have a handheld gizmo that has a strap that fits over my hand to help run with it. It has a pouch for keys/ID, too. I didn't like having something in one hand and not the other. Felt funky. But I see lots of other folks that run with one bottle in their hand.

ETA: Only for runs less than 15 miles.

I don't do very long runs (yet), but I run with my dog and he usually gets hot and worn out before I do. So I just have a small backpack that can hold a water bottle for me and for him. That's about all it can hold. Other people have fancier suggestions on here, which will probably work better, but depending on where you're at it might be easier for you to get a small backpack. If it fits you properly it shouldn't be annoying or an imposition.

Basically, if your body is telling you you need water while you're running, take some with you! Also make sure you drink plenty the night before and the morning before your runs.

In the UK I never carried water for anything less than 10 miles. Since I moved I'm finding I'm carrying water for 6 miles when it's warm, because I'm so much thirstier in the heat I'm not used to. I carry a bottle right now, and I find it's not really a bother. But for my long marathon training runs I'm planning on getting a hydration belt. I have also taken some money with me in the past to buy a drink at a shop on the way.

All the half marathons I have completed have had water stops every couple of miles or so. My first also had Lucozade at a few stops. I wrongly assumed there would be sports drinks at my second, and suffered from lack of energy because there wasn't, though they had the option for you to take your own, labeled, and they would transport it to a water station of your choice. Always check to see what the race has before you get there so you know what to expect.

Tl;dr: ~ If you're thirsty on runs, drink water, doesn't matter what other people do!
~ Lots of good suggestions here to make sure you have water on a run
~ Check the race before to see what they have. Probably water, maybe sports drink. Never assume.

If I am going less than 10 I tuck a few jolly ranchers (hard candy) in the arm band that holds my music player. Sucking on that or a peppermint keeps my mouth moist and I don't require water until I'm finished. If it's over 10 I use a hydration belt and will take a pack of gels or energy beans with me.

I love this idea! Sometimes, even on a shorter run, I feel like I need water... but I think it's more of a dry mouth situation than anything. I'm definitely going to try this. Thanks!

I regularly run trails and will mix a few miles of running, hour or two of hiking, few miles of running, hiking etc. so carrying water is a must.

I'm an Eagle Scout, I refuse to go that far into the woods with no supplies at all anyway. I use a mid size camelbak with a hip belt and 100 oz bladder. It is enough to carry that water, an emergency whistle, map of the area, compass, socks, fire starter, signal mirror, knife, first aid kit, energy bars, rope, etc.

It is a few pounds but it makes you stronger anyway and I know if I was to fall and break my leg or find some injured person I would have everything I needed to stay the night there or help get them out.

Also, I have things in the bag waterproofed and it itself is lightweight and I run in minimus shoes so if I care to I can jump into a lake or river in full running gear and get out and keep right on running .I like that feeling.

Up to six I won't typically use anything. 7-14 I will use a handheld (amphipod 12 oz or ultimate direction 20oz) and for more than that (particularly when it gets hot and humid) I use my salomon hydration pack (50oz.) I do unsupported runs up to 50k with the salomon and a 20oz bottle in front. That pretty much covers all distances that I will attempt without aid.

http://www.runnersworld.co.uk/reviews/nutrition/energy-gels/24.html

While sports drinks can meet your fuel and fluid needs, they’re not always convenient to take on a long run. So if you have access to water – for example at race drinks stations, or water fountains in the park – energy gels can be a more practical solution.

Energy gels are essentially concentrated drinks of about 100 calories each, and nearly all need to be taken with water so that they digest properly.

How much gel you need depends on your size and how far you're running. As a general rule, you'll benefit from 30-60g (about two gels) per hour in a long run of two hours or more.

Personally, I've not found one (brand) that I can stomach yet (although I have just got a couple from Torq - that are said to be easier to digest - we'll see next weekend!!). - I prefer to go Old School and use Jelly Babies (don't underestimate the psychological benefit of these little buggers over soulless gels!!) :-)

http://www.torqfitness.co.uk/nutrition/torq-gel