Oddballs Sport Vests are light-weight, muscle-fitting and built for comfort. The ideal active-wear for gym and outdoor activities. There is a very limited stock of these bad boys so act fast! Oddballs Branding & Design 100% Polyester Hand made in Newcastle, UK Fully Sublimated Design Care: Wash em\' when they smell OR machine wash at 30 degrees Chest size is measured by the circumference of the widest part of your upper torso, below the arms. An accurate chest (or waist!!) measurement is important before ordering.