I found this vintage Adidas backpack from Germany : r/vintage
Balenciaga x adidas Large Backpack Black/Green in Aged Arena Lambskin Leather - US
Vintage Adidas Backpack | eBay
Vintage ADIDAS ORIGINALS Backpack Black Blue Pink Multicolor Mountain Hiking Rare Authentic Accessories Retro Outfit Bag Streetwear School - Etsy Israel