Whether you're an avid runner, cyclist, weightlifter, Cross Fit enthusiast, or simply recovering from an injury, you know firsthand how important it is to protect your chest, back, and arms from fatigue and keep them feeling energetic. That's why we designed our men's long sleeve compression top with premium fabric, durable stitching, and a comfort-fit that brings you firm, second-skin compression support to keep you performing at your best while running, lifting at the gym, playing competitive sports, or staying on the move. Our base layer shirt prevents chaffing and acts as a rash guard during gym workouts or outdoor activities. Firm, base layer compression gives you greater endurance while playing baseball, basketball, football, golf, and tennis. Experience the superior muscle support that only comes from Compressions’ men's compression shirts. Made of the-highest-quality opaque fabrics with special sewing craft and multiple stitches, buttery soft and privacy secured----perfect for yoga, exercise, fitness, any type of workout, or daily use. No more worry about the underclothes privacy when doing squat, bend or stretch. Enjoy great freedom of movement. SIZE GUIDE: Small: 36", Medium: 38", Large: 40" X-Large: 42". NOTE: All Sizes in Inches