Rounderbum Men’s Compression Tech Slim Fit Cotton T-Shirt – Posture Support & Core Shaping Undershirt, 2 Colors
$29.40
by Rounderbum
Posture Perfect with Compression Tech – Targeted compression zones support the core, back, and shoulders to refine posture and alignment Slimming, Toned Fit – Light compression smooths the abs, chest, and torso for a sharper, more confident silhouette Cotton Comfort Blend – Natural cotton with added elastane delivers breathable softness with discreet shaping power Seamless & Invisible – Stays smooth under shirts, polos, and jackets with no lines or bulk Built for Daily Wear – Holds compression and fit through long hours, repeated washes, and active movement Options for Every Body – Available in 2 versatile colors and sizes S–XL The Rounderbum Compression Tech Slim Fit Cotton T-Shirt is the essential upgrade to your daily base layer. Engineered with targeted Compression Tech, it smooths and sculpts the torso while encouraging better posture, gently supporting the core and shoulders to create a straighter, more confident stance. Whether worn beneath a dress shirt at the office or layered under casual wear, it discreetly improves both your fit and your frame.
Made from a breathable cotton-elastane blend, this compression tee balances natural softness with flexible shaping. Cotton keeps the fabric light and comfortable against your skin, while elastane ensures stretch, recovery, and lasting structure. The seamless construction eliminates lines and prevents chafing, so it stays invisible under clothing while keeping you supported throughout the day.
Designed to fit close to the body, the slim silhouette refines your outline without restricting movement. It creates a toned, athletic look that makes every layer worn over it sit better and feel sharper. Ideal for long workdays, travel, workouts, or nights out, it adapts effortlessly to your lifestyle while quietly enhancing your confidence.
Durable enough to maintain its compression power after repeated washes, this T-shirt is a long-term wardrobe investment. Available in White and Black, and inclusive sizes S–XL, it’s the versatile undershirt built to give you structure, comfort, and polish every time you wear it.
Care Made Simple:
Machine wash cold on gentle cycle or hand wash separately with mild detergent. Avoid bleach and fabric softener. Reshape while damp and hang to dry. Do not tumble dry or iron.
Made from a breathable cotton-elastane blend, this compression tee balances natural softness with flexible shaping. Cotton keeps the fabric light and comfortable against your skin, while elastane ensures stretch, recovery, and lasting structure. The seamless construction eliminates lines and prevents chafing, so it stays invisible under clothing while keeping you supported throughout the day.
Designed to fit close to the body, the slim silhouette refines your outline without restricting movement. It creates a toned, athletic look that makes every layer worn over it sit better and feel sharper. Ideal for long workdays, travel, workouts, or nights out, it adapts effortlessly to your lifestyle while quietly enhancing your confidence.
Durable enough to maintain its compression power after repeated washes, this T-shirt is a long-term wardrobe investment. Available in White and Black, and inclusive sizes S–XL, it’s the versatile undershirt built to give you structure, comfort, and polish every time you wear it.
Care Made Simple:
Machine wash cold on gentle cycle or hand wash separately with mild detergent. Avoid bleach and fabric softener. Reshape while damp and hang to dry. Do not tumble dry or iron.