Property of My Little Boy is the perfect shirt for dads of boys. We especially like the XY in this version of the popular "property of..." athletic t-shirts.

Property of My Little Girl is the perfect shirt for dads of girls. Note the XX in this version of the popular "property of..." athletic t-shirts.

This is our twins version of the popular "property of..." athletic t-shirts. Be sure to look closely at the two X's in this design.

A favorite shirt of the twin dads we know. Obviously you have to be at least twice the man to have twins...just ask any father of twins.

The first season is always tough. You've got to learn the ropes and figure out how to play the game like the veterans. This shirt is part of a winning uniform...it is machine washable!

For those with twins, only three challenges a week would be a cake walk.