this is so strange. I just finished a cap for my son and my husband said he would like a tobogan. I quipped back: "I can knit it but I do think it would get ruined the first time you used it". he looked very puzzled and he asked me why if I made one for our son why I wouldn't make one to last for him. I never heard of a ski cap called a tobogan before and next monday we will be married 41 years! (to each other) maybe you'll get more responses with a picture- just in case others have never heard of the term: "tobogan".