your slogan must have something with Crypto Currency. This is your biggest selling point right now and makes the biggest difference to other labels.

-Square²Wear - if don't get more chicks with my shirt, I get my bitcoins back
-the only experience which is better than be naked is a Square²Wear Shirt
-Square²Wear - bought with bitcoins
-i'm not impressed by bitcoin deflation. i invested into Square²Wear
-Square²Wear since 2010 into bitcoins
-Square²Wear - I love my bitcoin shirt.
-Square²Wear - i'm to geek for your vip list
-Square²Wear - bought with bitcoins
-Square²Wear - only for bitcoins
-Square²Wear - bought with Crypto Currency