The Sport Loop is soft, breathable, and lightweight. With its Velcro closure, you can easily and quickly adjust it. The nylon fabric features two layers with dense stitching on the inside, providing a soft cushion while allowing moisture to escape. The fabric is made from 82% recycled yarns, some of which contain material from discarded fishing nets. This band is CO2-neutral. The Sport Loop contains over 45% recycled materials by weight, 100% of the electricity used in manufacturing comes from clean energy sources, and 50% or more of all CO2-neutral Apple Watch products are not transported by air. Included: Apple Watch Sport Loop.