Sizing is based on bodyweight, but upper body/shoulder width is a factor. If you have narrow shoulders, go with a smaller size.
	
Use the FY Posture`s  Bowtie by Spud, Inc. to fix your posture - (NO MORE ROUNDED SHOULDERS!) Rounded shoulders = limited mobility
	
Proper Posture = "Added Size" Gain the illusion of having more muscle by standing up straight
	
Wear it at your desk, while exercising, in your car or even at home while watching TV.
	
Almost anyone can benefit from using the Spud Bowtie....Athletes, gamers, elderly, chiropractic patients, equestrian...