The purpose of a hydration pack is to get enough liquids into one's system in a rapid way. It usually is like a backpack of portable water that one can use for the entire day and is used during heat exposure and times hydration is required due to exertion.
Running hydration pack is a little water bottle which is very portable and does not prevent you from running normally. It is very convenient to use whenever you feel like drinking some water. They are usually available at a Wallmart or Canadian Tire.
I recommend Hydrapak.com they have it all. I like the website. Its very watery and nice and eye catchy. You'll like them. I read a review on them and they are amazing go check it out! http://www.hydrapak.com/
Probably Wal-Mart, Hyvees, some other cheap place like that.....
Hydration means that u are hydrated, in other words, it's like drinking water or liquid
As with any product there are a range of online retailers competing for you custom for Camelbak hydration packs, so it is wise to shop around. Camelbak.com itself provides a list of recommended retailers around the world. But competitive prices can be found at places like Amazon.com or specialist sporting goods outlets.
The British Army use both the canteen and hydration packs
Like that - pack
cold pack contains cold stuff like ice, hot pack stuuf like fire
You can purchase nathan hydration packs from stores like Walgreens, Walmart and there are other stores that you can purchase the product. You can also ask people who have purchased the product.
A little while ago, I got it in a double pack with Rechef of Darkness for like $15 at target. They might have it at your target.
It's not the correct phrase. "fold like a cheap camera" or "all over him like a cheap suit".