Looks like they are using Magento. The admin page is here
LOL looks like they messed up!
Yea but its def magento...what makes you like that site so much?
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I must admit i`m no graphic designer or such, and am all for people learning and trying to build your own site, but when i clicked on the link i thought it was a steel fabrication site not a clothing fabric type site, i felt like i was in prison.
At first I thought it was built off wordpress but it is indeed magento from the admin login to the whole checkout process, I deal with it enough on a daily basis to know. But I feel that they did a pretty good job especially if it was an average person because magento is not the easiest cart to customize.