Posture Corrector by Core Products.
The Posture Corrector helps to keep you standing tall and upright. Shoulder straps provide a snug, comfortable fit while placing shoulders in a neutral position. This inconspicuous and comfortable brace with crisscross design allows you to make adjusts for a custom fit. White cotton canvas with two flexible stays. One size fits most, up to 40” (102cm) chest circumference. Measure around widest circumference of chest.