Step into the legacy of performance with the Under Armour Heatgear Og Compression Short Sleeve. Featuring a lightweight, tight fit, this short-sleeve baselayer enhances muscle compression and boosts body-movement awareness. This short-sleeve baselayer uses the original HeatGear material from Under Armour's first-ever design, which proudly carries the "OG" name. The four-way stretch material provides a quick-dry feel and lets you move effortlessly and without restriction. The thicker, more supportive HeatGear construction helps prevent pinching, snagging, and chafing. Feel the squeeze, embrace the power with the Under Armour Heatgear Og Compression Short Sleeve. Built to keep you cool, supported, and ready to move, the Under Armour Heatgear OG Compression Short Sleeve delivers a sleek base-layer feel for training, practice, and game day. This fitted top brings back the original HeatGear fabric from Under Armour's first design, pairing supportive compression with four-way stretch so it stays close without slowing you down. Size & Fit GuidanceReviewers most often say this top fits true to size with a snug, body-hugging feel that works well under uniforms and workout gear. For the best fit, we recommend choosing your usual size for a compressive fit, or sizing up if you prefer a little more room through the chest and sleeves. Best ForBest for training, gym sessions, running, and layering under jerseys or uniforms when you want cool comfort and streamlined support. Styling & VersatilityThe smooth, close-to-body silhouette layers neatly under basketball jerseys and other gear without bulky bunching. It also works well on its own for workouts, giving you a clean athletic look with the locked-in feel many reviewers love. Break-In & DurabilityThis top is ready to wear from the start, with a soft, flexible feel that stays comfortable through movement. Reviewers also note that it holds up well through repeat workouts and regular washing. Care & MaintenanceWash according to the care label to help preserve stretch and compression over time. Many reviewers say the fabric continues to feel comfortable and perform well after washing.