The MP3 Sideline Tee delivers classic warm-up style in a lightweight, modern silhouette.

Made from 240 g/m² cotton, this tee stays breathable while maintaining enough structure for on-court movement and daily wear. The contrast neckline and signature triple-stripe sleeve detailing bring a vintage athletic feel, tying directly into the MP3 Sideline Pullover.

The MP3 circle emblem on the chest keeps the branding clean and precise — the identity of an athlete who plays with discipline, focus, and intention. With a loose fit, the tee provides full range of motion for shooting, conditioning, training, and everyday comfort.

Pair it with MP3 performance pants or the Sideline Pullover for a complete, unified MP3 warm-up look.

Features:

• 100% cotton (240 g/m²) — breathable yet structured

• Loose-fit design for natural movement

• Triple-stripe sleeves inspired by classic athletic kits

• Contrast neckline for a sharp, retro look

• MP3 circle emblem on chest

• Designed in Tokyo for the MP3 performance line

Why We Made This:

The MP3 Sideline Tee honors the heritage of warm-up culture — clean, sharp, timeless — while giving athletes a modern cut built for real movement.

It’s simplicity executed at a professional level.