Treksta USA offers hiking shoes and boots for men and women. See: https://www.trekstausa.com/vegan_styles
Merrell in the USA offers some vegan hiking boots. Search under “vegan hiking shoe.” See: https://www.merrell.com
Ethical Wares out of Wales in the United Kingdom offers a wide variety of hiking boots See: https://www.ethicalwares.com/footwear/walking-boots-and-shoes/
Will’s Vegan Store in London, England offers hiking boots for men and women. See: https://wills-vegan-store.com/
Avesu Vegan Shoes out of Germany sells Lowa hiking boots and shoes. See: https://www.avesuveganshoes.com/brands/lowa-com.html