YOSOOU Down Faux Mouton with Fur Size 2 YOSOOU is a stretch downwear brand using the new material "Dual Flex®︎". "Dual Flex®︎" is a new material with 130% elasticity and a flexible fit, providing high heat retention, allowing you to stay warm even in the cold winter without having to wear thick layers. I wore this to a Korean restaurant in the dead of winter, where the temperature was minus 5 degrees Celsius. The fur on the arms is removable. The front zipper is a double zipper, and when closed all the way up, the fur wraps around the neck. The stretchy fabric makes it easy to move around in even for long periods, and I highly recommend it. I have several winter coats and down coats, so I've only worn this 2 or 3 times a winter. Therefore, it's in beautiful condition overall, including the neck and cuffs.