Related Clues:

• Sole supporter?
• Shoe part
• It may be underfoot
• Shoe insert
• Boot segment
• It's underfoot
• Comfort enhancer
• Loafer liner
• Something good for the sole?
• Product associated with the annual Rotten Sneakers Contest
• Podiatrist's recommendation, perhaps
• Sole mate?
• Bass liner
• Shoe-in?
• What a pump might hold