Wild U-12 shrimp are super colossal-sized raw shrimp, graded at 12 or fewer shrimp per pound — one of the largest size classifications available in the seafood industry. These wild-caught shrimp are sold by the pound at the Costco seafood counter, thawed from frozen for convenient purchase.

The "U-12" designation refers to the count per pound: under 12 shrimp make up a full pound, yielding impressively large, meaty pieces. Their firm texture and rich, natural flavor make them ideal for grilling on skewers, broiling, sautéing in garlic butter, steaming, or serving as shrimp cocktail. Wild-caught shrimp are generally preferred over farm-raised for their fuller, more complex flavor profile.

Previously frozen at peak freshness, these shrimp maintain excellent quality. They are typically sold headless and shell-on, which helps protect the meat during handling and retains moisture during cooking. Shell-on shrimp also develop richer flavor when grilled or sautéed compared to pre-peeled options.