She put her hair up into a tight bun at the back.

Yep, he was the one, she decided, looking at his tight buns.

Her dark hair was tied up in a tight bun.

Her hair is in a tight bun, set against a dark brown background.

She'd brushed the mass of her dark, shiny hair back into another tight bun.

She carried a shoulder bag and her hair was back up in its usual tight bun.

The old woman's gray hair was up on the top of her head in a tight bun.

Her brown hair was tied back in a tight bun.

She came in another moment, her graying hair pulled up into a tight bun.

Her hair was drawn back into a bun so tight that it looked painful.