Kinetik Tops Size Chart Runners, cyclists, and triathletes aren't the only sportspeople who benefit from compression apparel. Kinetik short sleeves multisport tops are versatile additions to the gear bags of fitness enthusiasts and endurance athletes who desire faster recovery, reduced muscle oscillation, and improved circulation. Kinetik's XPower technology surrounds and supports the key muscle groups in the shoulders, torso and back, ensuring the best combination of compression, comfort, and performance. Features: - Functions equally well as a base or top layer - Compression panels start at crew neck and travels down and across the torso to support the abdominals, deltoids, spine and lumbar region - Armpits are vented with opaque - Long-waisted cut that ends in a wide, soft elastic waistband