Many stores sell sports shorts with a 5inch inseam from Brooks. Nike, Asics, NorthFace etc. Check out a comparison site like Nextag to find one you like and the best prices/places to buy them.
A good place to buy shorts with a 5 inseam is epicsports.com. There is a good variety of 5 inseam shorts for women on that site. Supercustomshorts.com also has 5 inseam shorts for women. There are also some nice ones at rei.com.
I have found that the best place to buy cheap Nike running shorts online is http://www.soark.com/ They have free shipping when you spend over $75, which is great.
If you are simply looking for an online retailer that will sell a wide variety of products, specifically running shorts, take a look over at Amazon.com to find what you need.
Zappos.com is one online retailer that sells cheap compression shorts. The other places I would recommend taking a look at would be either Amazon or Ebay or another specialty sports retailer.
The American Apparel website lets you buy American Apparel shorts online at their store. They also have a search feature which lets you select your state then find the best retail store near you that sells cheap shorts.
The best material for champion mesh shorts is natural material. Champion mesh shorts are available for men and women. They can also be bought with a custom fit online.
If you are specifically looking for the RunningWarehouse brand of clothing, it is generally best to go to the source. RunningWarehouse.com would be the best place to look.
Shopping online is probably your best bet when it comes to out of season clothing. But, a lot of stores will still carry a small selection of shorts off season. Try looking at Wal-Mart to see what they have.
The best store to purchase a Nike product would be from Nike itself. This online retail store offers the best and most authentic Nike shorts at www.nike.com/.
If you are talking about two in one running shorts I am going to assume you mean the kind of running shorts that have the built in underwear. The best two in one shorts are the Nike Tempo and the Under Armour running shorts.
There's a wide variety of sources out there for cycling shorts, so you should ensure that you're getting the best of the best. One of the stores with the best selection can be found at http://www.rei.com/search?cat=4500003_Cycle+Clothing&search=Cycling+Shorts
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