'If you're serious about your training, do it in Under Armour. From game-day layering to gym sessions and high-intensity training, this compression tee is built to keep you dry, supported, and ready to move. The Under Armour HeatGear Armour Compression S/S Football T-Shirt delivers a close, athletic feel with lightweight stretch that stays comfortable through workouts, practice, and all-day wear. Size & Fit Guidance Reviewers say this style delivers the close, locked-in feel expected from compression gear. For the best fit, we recommend your usual size if you want true compression, or sizing up if you prefer a little more room for training or everyday wear. Best For Best for layering under uniforms, training in the gym, and staying comfortable through sports, workouts, and active days. Styling & Versatility This is the kind of performance top that works well beyond one sport. Reviewers wear it under football, basketball, baseball, and track uniforms, as a workout staple, and even as an everyday base layer thanks to its clean look and easy mobility. Break-In & Durability Most reviewers mention instant comfort with no real break-in needed, plus dependable shape retention through repeated wear. The lightweight fabric is also praised for holding up well through training, practices, and regular washing. Care & Maintenance Reviewers note that it washes well and continues to perform over time. To help maintain the compression feel and fit, some prefer to air dry after washing."