Upper Back Mobility X3 Foam Roller

From a lying position on a foam roller, extend backwards in a position just above your shoulder blades, right on your shoulder blades, and right below your shoulder blades. Similar to a crunch motion, keep your core tight with your hips up and you lower body quiet while extending backwards and forwards on the roller. If you ride a bike, work on a computer, or are in any forward rounder position, this will take some time to get opened up.

Don't go so deep it hurts too much, it should be hurts so good! Be patient as it will get better after several sessions.

This (along with rowing/setting the scapula exercises) will work to un do damage from a forwardly rounded spinal position that is everywhere today.