Triangle Arrow Less Vertical is a line-style Icon from Material Pro Line set.

The Triangle Arrow Less Vertical icon shows a downward-pointing triangle above an upward-pointing triangle, each with a triangular cutout. Drawn in the line style on a 24px grid for clear, consistent UI rendering. Use it for vertical expand and collapse controls, accordion toggles, compact layout selectors, and spacing adjustments. It belongs to Material Pro Line set in the Streamline Material family.