While the top strap and chest strap adjustments help with the placement of the girth strap (around the ribcage) there are other adjustments we can make that impact the placement of the girth strap. If you find that your girth strap is riding into the underarm area of your pup, try loosening the neck loop. By lengthening/loosening the neck loop straps, we can make the girth strap sit further back on the dog's ribcage. By shortening/tightening the neck loop, we can shift the entire harness forward..