These are prescription glasses. ↓ These are the dark brown ones from this product: https://www.jins.com/jp/item/UMF-22A-209_85.html?srsltid=AfmBOooiOAf673Ik6B6LDKwggyIB5707YnJ3Y5WaQg9l9QtO-0Y2MGXI Since they have prescription lenses, you will need to have the lenses replaced at a store. There is no warranty card.