Birkenstock - Uppsala Zip Shearling - Dark Tea Suede Leather Merino Wool but these will last longer

but these will last longer than most thanks to a spare set of footbeds

Contoured to stabilize and support your entire foot

Durable  polyurethane upper

A common option is to go "up a size and narrow"

Birkenstock - Uppsala Zip Shearling - Dark Tea Suede Leather Merino Wool but these will last longerNow with an easy on zip closure, the Uppsala Zip boot is all about effortless cold weather comfort. Velvety suede wraps the exterior, while a genuine shearling lining delivers warmth from within. Grounded in our contoured footbed, its built for cozy supportno matter the weather. Removable contoured cork latex footbed Classic suede upper lined with genuine shearling Suede footbed lining Rubber sole made from synthetic materials Footbed made in Germany .