Sweat your heart out with Under Armour! Lightweight, quick-drying, and ultra-stretchy, the Under Armour Vanish Energy Long Sleeve helps you plunge into unstoppable mode with ease. This Celliant-powered T-shirt amplifies your potential with the use of advanced technology. The four-way stretch material allows better movement in every direction. Backed by UA RUSH infrared technology, this long-sleeved T-shirt reflects your body's energy, helping you push harder and recover faster. Sweat today and shine tomorrow with the Under Armour Vanish Energy Long Sleeve. Under Armour Vanish Energy Long Sleeve features: From early runs to gym warm-ups and everyday layering, this lightweight long sleeve is built to keep you cool, dry, and moving freely. The Under Armour Vanish Energy Long Sleeve combines a soft, ultra-stretch feel with UA RUSH infrared and Celliant-powered performance technology, while the fuller cut delivers easy comfort through training and beyond. Size & Fit Guidance For the best fit, we recommend your usual size if you want the intended loose, comfortable feel. If you prefer a closer fit for training or layering, some reviewers suggest sizing down, especially if you like a trimmer sleeve and body shape. Best For Best for workouts, running, warm-ups, sun-cover layering, and easy everyday wear. Styling & Versatility A clean crew-neck design and smooth drape make this an easy pick on its own or under jackets, uniforms, and outer layers. Reviewers wear it for the gym, golf, yardwork, workdays, and casual daily rotation thanks to its light feel and understated look. Break-In & Durability The fabric feels soft and ready to wear from the start, with plenty of stretch for natural movement. Reviewers also note that it holds its shape, comfort, and performance well through repeated workouts and wash cycles. Care & Maintenance Easy-care performance fabric makes this a simple option for frequent wear. Reviewers say it washes well, dries quickly, resists shrinking, and stays smooth after laundering.