I just came from a Sulky class and saw a neat way to have a snap front closure on a vest, jacket,etc. where the front edges butt each other and there is no overlapping.On the right side of the front (right side while on your body) you sew the male part of the snaps close to the edge of the front. On the left side of the front, you set the female part of the snap but you only sew through one hole of the snap. The whole of the snap actually extends beyond the edge of the vest. When you connect the snaps, the two front edges butt each other & the snap cannot be seen. I assume you would use a slightly heavier thread than normal for strength. Hope this is clear.