Authentic Apple Watch Sport Band. White. 44mm. Includes both S/M and M/L bands. “Made from a custom high-performance fluoroelastomer, the Sport Band is durable and strong, yet surprisingly soft. The smooth, dense material drapes elegantly across your wrist and feels comfortable next to your skin. An innovative pin-and-tuck closure ensures a clean fit.” “44mm Apple Watch bands are designed for larger cases and are generally compatible with 42mm, 44mm, 45mm, 46mm, and 49mm (Ultra) models.”