|Top of shoulder seam and neck gore.|
In the following two images you can see both sides of the same section of the seam. This type of seam not only looks interesting, it looks good from both the inside and the outside. Can you tell which is the inside of the shirt and which is the outside?
|Outside view of seam.|
|Inside view of seam|
One other thing I like about this type of seam is the way the sleeve looks when it is joined to the body. The following picture is a close-up of the underam section of the sleeve.
"In sewing, a gusset is a triangular or square piece of fabric inserted into a seam to add breadth or reduce stress from tight-fitting clothing." The following picture is the underam gusset.