Here is a great guide I have created on buying shoes on eBay. The purpose of this guide is to know how to correctly find the right size of shoe regardless of brand, know what to look for in buying authentic shoes, and know what questions to ask to receive exactly what your looking for.

›››Determining Shoe Brand Size‹‹‹

•Unfortunately, there is not an international sizing standard and surprisingly, not all brands run the same size. The most accurate way to find your size it to physically try on the brand of shoe before you buy in-store. If that is not possible, here is currently a small list of Major Brands and their sizing standards compared to a true Men's Size 8:

Brand....................Men............Women

•Adidas:...........+1/2 Size............-1 Size
•Asics:..............+1/2 Size...........True Size
•Converse:........-1/2 Size...........True Size
•New Balance:..+1/2 Size...........True Size
•Nike:................-1/2 Size...........-1/2 Size
•Puma:..............+1/2 Size..........True Size
•Reebok:............True Size..........True Size
•Vans:...............-1 Size...............True Size
•Ugg:.................-1 Size..............-1 Size

•Listed Below is a Men's & Women's Sizing Charts

Men's Shoe Size Chart
Shoe Size

Inches..........Centimeters.......US Size........Euro Size......Shoe Size
9 1/3................23.7..................6.................37 1/2.............6
9 1/2................24.1..................6 1/2...........38...................6 1/2
9 2/3................24.6..................7.................38 1/2.............7
9 5/16..............25.....................7 1/2...........39...................7 1/2
10....................25.4..................8.................39 1/2.............8
10 1/6..............25.8..................8 1/2...........40...................8 1/2
10 1/3..............26.2..................9.................40 1/2.............9
10 1/2..............26.7..................9 1/2...........41...................9 1/2
10 2/3..............27.1..................10...............41 1/2.............10
10 5/6..............27.5..................10 1/2.........42...................10 1/2
11....................27.9..................11...............42 1/2.............11
11 1/6..............28.4..................11 1/2.........43...................11 1/2
11 1/3..............28.8..................12...............43 1/2.............12
11 1/2..............29.2..................12 1/2.........44...................12 1/2
11 2/3..............29.6..................13...............44 1/2.............13

Women's Shoe Size Chart (Generally Add +1.5 to Get a Men's Size)

Shoe Size

Inches..........Centimeters.......US Size........Euro Size......Shoe Size
8 1/2................21.6..................5..................36..................5
8 2/3................22.0..................5 1/2............36 1/2............5 1/2
8 5/6................22.4..................6..................37..................6
9......................22.9..................6 1/2............37 1/2............6 1/2
9 1/16..............23.3..................7..................38..................7
9 1/3................23.7..................7 1/2........... 38 1/2............7 1/2
9 1/2................24.1..................8..................39..................8
9 2/3................24.6..................8 1/2............39 1/2............8 1/2
9 5/16..............25.....................9..................40..................9
10....................25.4..................9 1/2............40 1/2............9 1/2
10 1/6..............25.8..................10................41..................10

›››Determining Authenticity on eBay‹‹‹

•Although there is not a standard checklist to determine the authenticity of every shoe and even having a box or receipt can sometimes end up with having a fake. Here is a small checklist to keep in mind when purchasing shoes on eBay.

Be Careful Of:

1.) A Seller That Has *Rare* or *Hard to Find* Shoes in Every Size - Be Cautious, Chances of Fakes
2.) A Seller That Does Not Show Box Label, or Will Not Send a Picture of it - Chance of Fake
3.) A Seller That Has Low or Negative Feedback - Be Cautious of Seller, Chance of Fake
4.) Dirt Cheap Shoes - Chances Are They Are Fake
5.) Statements Such As: 100% Authentic! or 100% Genuine - Chances of Fakes
6.) Seller Who Claims to Order One Size Bigger/Smaller Than Brand Sizing (As Listed Above)
7.) Seller That Does Not Answer Questions Promptly - Expect an Answer

›››Determining What Questions to Ask‹‹‹

•Questions are key to having a good experience on eBay. You can never ask too many questions.

1.) Ask For More Pictures of Item
2.) Ask For Receipts
3.) Ask a Second Opinion - The Community Boards and About Me Pages on eBay Offer Many Knowledgeable Insight on Finding Out Authenticity.