Nautica boys size 6 small plaid shirt like new

Red, blue, white, yellow, and green plaid long-sleeved button-down collared shirt. Lightweight and soft fabric. Nautica brand. This actually might be 100% new without tags, but I can’t be certain, so let’s call it “like new.” Size 6, fits like a small. Says it’s part of a 3-piece set but I have no idea what that’s about. This is just one shirt!