Arizona Vegan Synthetics in Color Soft Birki Vegan Gray 。The Birkenstock Men\'s Arizona Vegan Synthetics Sandals Model 1024550 is a comfortable and adjustable slip-on sandal perfect for travel and casual occasions. Made with synthetic upper material and a rubber outsole, these sandals feature a buckle closure and are accented with the Birkenstock logo. The green color and solid pattern make them versatile for all seasons, while the cork insole provides added comfort. Manufactured in Germany, these sandals are a durable and stylish choice for outdoor activities.