Power your workout with the Under Armour HeatGear Og Compression Tank. Made with thicker HeatGear fabric, this tank top keeps you protected under your gear, limiting pinching, snagging, and chafing. The fast-drying, moisture-wicking material and a four-way stretch construction moves effortlessly with your body. The ergonomic flatlock seams help reduce chafing, while the classic racerback design enhances mobility and freedom of movement. Lightweight, breathable, and built to perform, the Under Armour HeatGear Og Compression Tank is ready for anything. When your workout calls for a held-in feel that still lets you move freely, this compression tank is ready for it. The Under Armour HeatGear Og Compression Tank is built for training, practice, and easy layering under your gear, combining lightweight breathability with smooth, stay-put support from start to finish. Size & Fit GuidanceMost reviewers say this tank delivers a true compression fit with a close, secure feel. For the best fit, we recommend your usual size if you want that locked-in effect, or one size up if you prefer a little more ease through the shoulders and torso. Best ForBest for workouts, training, running, and layering under a jersey when you want smooth, stay-put support. Styling & VersatilityThe clean racerback shape and streamlined profile make this an easy piece to wear solo in training or layered under practice gear. Reviewers also like the balanced length, which stays flattering and functional without feeling too long or too cropped. Break-In & DurabilityReviewers often describe the fabric as comfortable right away, with soft stretch that feels light and easy to move in from the first wear. Many also call out dependable construction and a fit that stays in place through regular workouts.