This pattern is for Adult Male Sizes only ranging from size 6 to size 11/12. These slipper boots are done using felt insoles which can be purchased in footwear stores, in Etsy shops with the little holes already punched in, or on other websites. If you use shoe felt insoles, you will need a leather puncher to make tiny holes and a 2.5mm crochet hook to attach the yarn to the soles. Pictures and a very detailed explanation are included in this pattern. I have included links to show how these single-plaited cables are done. You can also dab some puff paint under the soles to make them less slippery and the felts will last longer than just the use of yarn. They can be hand-washed gently and air-dried only, please do not put them in a dryer with the felt insoles. If you have any questions, please do not hesitate to contact me. Thank you for your purchase :)