I purchased the Wolf cuff originally for my husband as a Christmas gift. Unfortunately the size I choose was not correct. The M states "up to 8 inches". If you have an 8 inch wrist, I would recommend the L. We were both disappointed that the Wolf cuff was not available when I requested an exchange. He liked the Lion cuff also, so I exchanged for that. He is very pleased with it and has worn it almost every day since receiving it. Please restock the Wolf cuff!