Start with the 13-13.3 inch size and your primary need—protection, transport, or a mix of both—for your asus 13 inch. For lightweight daily use, a sleeve like the 13.3-Inch Felt Sleeve Case from a trusted brand is ideal, offering soft protection without bulk. If you need more rugged protection or extra features, consider alternative categories such as protective sleeves, laptop bags, or accessories that pair with cooling pads. This approach helps you pick the right category without overpaying for features you won’t use.