Thanks Fandyllic and TobyTime. I can't remember which episode but we only ever saw Tom in this robe once. Usually he's fully dressed. I can't find screenshots of it anywhere! The robe is similar to a Pendleton wool robe, it may even be that exact type. Sorry it's not a lot to go on. As soon as I saw it my boyfriend and I looked at each other and said "Oh that's a nice robe" and now I want to get it for him for Christmas!