L.L.Bean Insulated Boots for Men for Sale - Shop New & Used 。L.L. Bean Insulated Boots Item# 510534. Size Men’s 10 M. These have Waterproof Lowers. The Upper part is Lined with Sherpa, Fleece, or a Similar type of material. The lowers are insulated With Another Kind of Insulation. Bean’s Size Code IM is marked on the bottoms Which on Insulated boots stands for their Men’s 10 Medium Width. These have been marked with a Red X on their inside tags which means they can’t be returned to the store. These are in good used condition but they are used so they show all over wear and they have signs of wear and imperfections but they should have lots of life left in them. I think these might be dark brown or possibly black or both colors but I have a hard time with colors so I could be wrong about the color/s. The person we got these for didn’t like how loose they fit around the tops of them. PLEASE NOTE: Any measurements are extremely rough measurements to give a general idea of size. Colors may be off because of lighting. Bean boots usually have a unique fit and they often state that they are made to accommodate thick socks. However, I’m unsure how this particular style runs. Primaloft Insulation.