Amazon has quite a bit of an array of different running products. You can find various asics brand products specifically running shorts and may even qualify for free shipping as an added bonus.
You can purchase as much running shorts as you want. You can purchase the running shorts depending the brands you are interested in. Visit the link, http://www.runningwarehouse.com/catpage-MRSHORT.html there you can find running shorts in several brands like Adidas, Asics, Brooks, Nike, BOA, Reebok, etc.
6pm shoes sells Asics running shoes for men and women. 6pm shoes also carries Asics Kids and Onitsuka by Asics.
The running store is an online store that sells a wide variety of running apparel including shoes, watches, shorts and other items. They are not specifically regarded as a fitness store.
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.
Kelly's running warehouse is a large shoe store that sells running shoes and running apparel such as t-shirts and running shorts. Therefore you will be unable to find a website that sells this, as it a store itself.
Amazon sells Asics Womennibus along with many other running shoes and also check Zappos they have a lot of great running shoes that are usually less then the buyer is asking for.
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.
Kids foot locker has boys Asics running shoes for sale. They have all sizes from boys to kids. Many running shoes to choose from with many different brands.
There are a number of good and reputable online stores that will sell the Asics brand of running shoes. I would suggest you take a look over at Amazon.com
www.onlineshoes.com/Asics has good reviews on their shoes. www.calibex.com/Shoes has some. www.designerapparel.com/Asics is having a sale. There are also plenty on Amazon and Ebay!
Carson's sells a wide variety of apparel. For example, one can find athletic wear, blazers, casual shirts, jackets, tees, hoodies, fleeces, jeans, robes, shorts, and more through this company.
You can buy neon running shorts at a variety of online stores. I like www.finishline.com, www.zappos.com, and www.amazon.com for their competitive prices.