Collégien is a family company established in 1947 located in a small village in the South of France. From trading in sheets and fabrics in the 1860s, the Guille family progressed to producing socks in 1930, with the Collégien brand first appearing in 1947 when the socks were made unique with the injection of a soft rubber sole, giving birth to the popular slipper sock. In 2006 Olivier Guille introduced a new modern design for the slipper-sock with an ergonomic, breathable soles that is still manufactured in France. The rubber sole hugs the foot, with holes and small nodules on the bottom that aerate and provide a non-slip grip. The collection also includes luxurious Wool/Cashmere socks and mittens, wool socks in collaboration with Smalls and kneehigh Egyptian cotton socks and tights.