From the Pattern Description: The saddle shoulder is a handsome, well-fitting design, especially attractive in boys’ and men’s sweaters. To knit it without any sewing is almost ridiculously simple once you know how to make a seamless set-in sleeve, for it is almost the same thing except that part of the sleeve cap runs on, without a break, to the neck.

Location of Pattern: Basic Design No. 8 - page 86 - from Knitting from the Top.