The Uppsala Zip by BIRKENSTOCK stands out with its timeless look and high-quality materials. The mid-calf shaft offers optimal support and protection – ideal for cold winter days! The shoe is lined with natural, moisture-absorbing and antibacterial lambskin, which ensures a comfortable feel against the skin and optimally regulates the foot climate. The zipper makes it easy to slip them on and take them off. The upper is made from especially soft suede which hugs the foot like a second skin.