Just select it and you'll see an option to upgrade to 16G (which adds a whooping $180 to the price): https://www.apple.com/us-hed/shop/buy-mac/macbook-air/space

Just select it and you'll see an option to upgrade to 16G (which adds a whooping $180 to the price): https://www.apple.com/us-hed/shop/buy-mac/macbook-air/space-gray-apple-m1-chip-with-8-core-cpu-and-7-core-gpu-256gb https://www.apple.com/us-hed/shop/buy-mac/macbook-air/space-...