perles slippersThese Collgien slippers have an ergonomic, non slip and micro ventilated sole. They are machine washable, at 30, making your daily life easier and keeping your slippers as clean as when you got them. Collegien chooses high quality yarns to ensure the durability of their products. Their slippers are made. Cotton yarn is used for its softness and makes for a softer and more comfortable slipper. Polyamide is used to give even more solidity to the