This is the Photosynthesis UV-Sensitive Shirt, it looks like any old T Shirt, but when the sun is out then due to the special print treatment, it actually changes the design so that the flower etc come out in the sun and when inside the flower is hardly noticeable, it is quite cool!
These are the features and details for the Photosynthesis UV-Sensitive Shirt;
Leaves and roots grow out of the formula when the shirt is exposed to UV light. The leaves and roots are visible but very faint indoors. The whole glorious mess is printed on an eco-friendly 100% certified organic cotton, 4.3 oz. natural (off-white) t-shirt. For maximum life of the design, machine wash cold, inside out. Do not iron. Note: Please reference the table below to choose your size.
Price was £15 ($23.99) the price now is £8 ($13.99)
Source [Random Good Stuff]