Now there is a perfect t-shirt for a rock climber because this is the I Love Climbing t-shirt.
On the shirt you can find a big heart and in the heart you can find a big rock and hanging on the rock you can see a human hanging while trying to reach to top. Besides the climber you can also find a the moon so you know that it has been a long time climbing up.
Besides the heart it also says I and Climbing and together that means I Love Climbing and that makes it clear to everyone that you love to conquer the stones.