The word retro, as used in the fashion industry, refers to a fashion style inspired by styles of the past which includes retro shoes and retro clothes. Retro style most often refers to outdated styles and designs of the 1950's, 60's, and 70's; which are incorporated as nostalgic elements in current fashions.
About Vegan Shoes:
Footwear made entirely without animal-based materials (i.e., leather, silk). Vegan shoes are usually constructed from synthetic materials, such as man-made leather.