Worn-out shoes rarely become upcycled, which makes them a huge burden on the environment. This problem has been addressed by the designer of these environmentally-friendly shoe uppers, which prolong the lifecycle of second-hand soles. The author divided shoes offered by a footwear manufacturer popular among Polish buyers into three categories. Then, she designed uppers for each category of shoes: heels, untypical, and sports. They are made of the cannabis sativa plant, which does not require a lot of water. All the uppers are dyed using natural dyes and sewn to eliminate the use of artificial glues. The uppers are biodegradable and the soles can be re-used in another pair of shoes.