Alessia Zamattio cardigans typically follow a true-to-size knitwear block with an intentionally relaxed, longline silhouette. If you hover between sizes, choose based on how you layer — take your usual size over tees and light blouses, or size up if you plan to wear it over heavier shirts. Each product page notes length, shoulder structure, and any oversized intention to help you decide. Live chat can give a second opinion if you are between two sizes.