The Apple Watch Leather Loop band is comprised of leather-wrapped magnets. The band was sold in two sizes, Medium for 150–185 mm wrists and Large for 180–210 mm wrists. They were available for both the 38/40 mm and 42/44 mm Apple Watch models.
The Leather Loop band was among Apple’s original band designs in 2015. Apple describes the Apple Watch Leather Loop band:
“The Venezia leather for this band is handcrafted in Arzignano, Italy. With an artisan heritage spanning five generations, the tannery has a history of partnership with some of the most prestigious names in fashion. A delicate milling and tumbling process enhances the beautiful pebbled texture. And magnets concealed within the soft, quilted leather allow you to simply wrap it around your wrist for a precise fit and a trim look.”
The Meyer Lemon band is a shade of bright yellow. This style uses no mechanical fasteners that might potentially scratch a surface.
Source: Apple, Bandbreite app