Buy an xyHt Shirt

Our shirts are printed on high-quality Hanes Tagless 100% ComfortSoft cotton. Shirts are $14.95 each and ship for $4 to U.S. addresses. If you’re ordering from outside the U.S. or purchasing multiple shirts, please indicate that in our order form below, and we will work with you to get your shirts ordered and delivered!

xyHt shirt

Front says, “Adding the 4th dimension.”

xyHt graphic t-shirt

Back says: Left/Right, Fore/Aft, Up/Down, Time

T-shirt Order Form
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If ordering more than one shirt, please select "Multiple" and place the quantity in the field allotted.
If ordering multiple shirts, please select all sizes you'll need.
If ordering multiple shirts of different sizes, please provide the breakdown of how many of each size you will be purchasing.