The Puma x Ader Error "CGR" - of all the shoes in PUMA's extensive tennis archives, the CGR is one of the most exciting and daring. The shoes' signature cupsole and split midsole ensure that they stay true to their tennis roots while also standing out on the streets. While some aspects of the execution have been modernized and expanded, iconic features such as the logo placement and D-shaped lace keepers have been retained. Seen here in the strictly limited Ader Error edition.