Complex sentence: The Adidas-Parley shoe silhouettes were re-designed with knitted uppers and decorative stitching, all made from recycled plastic that was collected by Parley for the Oceans from polluted coastal regions.
Split into simpler sentences: The Adidas-Parley shoe silhouettes were re-designed with knitted uppers and decorative stitching, all made from recycled plastic. This recycled plastic was collected by Parley for the Oceans from polluted coastal regions.