A clutch bag is a small, strap-less (or strap-optional) handbag designed to be held in the hand or tucked under the arm, perfect for carrying only essentials like a phone, keys, and lipstick, making it ideal for formal events, dinners, or nights out where elegance and minimal items are key. While traditionally strapless, modern clutches often feature detachable wrist straps or chains for versatility, evolving from purely evening wear to stylish options for daytime or semi-formal occasions.