The Nike Sport Loop band was woven from nylon thread to create a hook-and-loop closure. These bands were available for the 40 mm and 44 mm Apple Watch models, and were offered in sizes to fit 130–200 mm wrists and 145–220 mm wrists. The bands also fit older Apple Watch sizes. The product code is MGQJ3AM/A.
This band appears primarily monochromatic using shades of very light/powder green and light gray. The primary color field of the band is a combination of the light green and light gray, both with similar tonal values. The edges are a shade of powdery light green. The plastic connectors and closure are light gray. The “powder” description is reminiscent of the color difference between a pine tree (dark green) and some spruce trees with the appearance of powdery leaves (especially the blue spruce).
Apple described this Nike Sport Loop band:
“Soft, breathable, and lightweight, the Nike Sport Loop is designed for fitness, with select colors matched to the new line of Nike running shoes. It features a nylon weave with reflective thread designed to shimmer when light strikes it. A hook-and-loop fastener makes for quick and easy adjustment, and dense loops on the skin side provide soft cushioning while allowing moisture to escape. On the reverse side, the attachment loops are securely anchored for superior durability.”
Source: Apple, Bandbreite, Wikipedia