Custom Ink is a US based company and I found the following on their web page.
Personalize Your Own Made in the USA Gear
Support America by designing custom t-shirts and apparel made in the USA! All mens and womens products offered above are proudly manufactured and printed within the United States. Companies like Bayside & American Apparel offer high quality shirts that won't break the bank, and all of their products are American-made. Custom Ink even operates all of its facilities within the U.S., including its entire customer service & sales force. On top of that, we offer thousands of free graphics and fonts, which you can use to create your awesome t-shirts in our fun & easy-to-use design lab. Free shipping is standard, and live help is available 7 days a week to perfect your order.
Ok, I'm not trying to stir up trouble but I just contacted Custom Ink. They say they are NOT made in the USA and will not even tell me where the hats are made!!
See screen shots of my conversation.