1. the bottom parts of shoes or boots that touch the ground
Usage: plural of outsole

Examples

• The outsoles of my running shoes are worn down from daily jogging.
• These hiking boots have thick rubber outsoles for better traction.
• The cobbler replaced the damaged outsoles on my leather dress shoes.
• Basketball shoes need durable outsoles to handle court surfaces.
• The outsoles showed deep treads designed for muddy terrain.
• She checked the outsoles for any embedded rocks before entering the house.