The Sport Loop is soft, breathable and lightweight. You can adjust it quickly and easily with its Velcro fastener. The nylon fabric with two layers has dense mesh on the inside. They act as 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 wristband 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 carbon-neutral Apple Watch products are not transported by air.