Looks like you need alterations to bring in chest and possibly neck size.
It's called "channeled stitching". A layer around the edge of the sole is peeled back, a little channel carved into the layer underneath, and the stitching is done inside the channel. Then the layer that was peeled back - about half an inch all the way around, is glued back down over the stitching which lies flush inside the channel.
Eventually, the layer of leather over the channel usually starts coming away or wears away, and then you'll start to see where the stitching is!
Im looking to purchase a blazer or sport coat, and I am leaning towards the Gant Rugger R. Canvas blazer in navy: http://media3.gant.com/media/catalog/product/cache/4/image/540x540/0dc2d03fe217f8c83829496872af24a0/7/6/76862_402_1.jpg
Does anyone have any experience with this blazer, or could anybody recommend something better? Im a student so I dont have the savings to go bespoke, but I need a blazer/sport coat for recruiting events, etc.