I hope the following will help you identify if the fastskin ii jammer you bought was a real one or a fake. I bought one recently from an eBay Canadian seller and found that it was a fake.  After spending $16 to send the item back to the seller, I finally got my money back (excluding the $16 postage). This seller has since changed his seller ID and still selling fastskin at a cheap price on eBay. My son has been a competitive swimmer for the past 4 years and we bought at least 8 fastskin II jammers from both retail stores, eBay, Amazon and Swimoutlet.

The fake fastskin II jammer I got from the Canadian eBay seller had the Speedo lettering without slants.  Second, the size I ordered was 34 but visually I can tell it could only fit a size 28. third, there were hardly any sheen or coating on the fabric, fourth, the waist tie was made of shoe lace instead of braided chord.

Logo: Always go to Speedos USA official web site to compare the logo. When you compare the logo you are looking for anything that is different.  You are not only looking for the difference in lettering (fonts, italic, bold etc) but also the graphic.  This goes with other brand names as well. Always compare the one you bought with the brand name official site.

Size: This is an obvious "give away".  Fastskin II is designed to be worn snug.  However, look at the size on the tag and compare it with the ones you previously bought. If visually you see the item looks extremely small, you might be dealing with a fake.If this is your first time buying a Fastskin II jammer online, take it to a known store who sells authentic Fastskin II, ask the store clerk if you could compare the size with the ones they sell.

Fabric Coating: Sometimes it is hard to see, but certainly you can feel the fabric.  If this is your first time buying it, again, go to a known store who sells authentic Fastskin II jammer and ask the store clerk if you can compare the look of fabric and feel of it.

Waist tie:  It should never be a shoe lace.  The Fastskin II jammer waist tie should always be a white braided chord.

I hope this will help you identify fake Speedo Fastskin II jammer.