They’re a size 41 and fit like a US 10 or 10.5. 100% authentic. Purchased at Chanel in SF in 2016 or 2017. Material is wool and velvet. Plenty of life left but could stand to be cleaned up by a cobbler. Most of wear is inside at soles. Exterior looks great. My body has gone through some changes and they oddly don’t fit me anymore. Priced to sell