Related Clues:

• Shoe bottoms
• They're attached to arches
• Dog bottoms?
• Cobbler's replacements
• Cobbler's concerns
• Foot parts
• They often hit the ground running
• Cobbler's supplies
• Tread settings
• Plantar sites
• They may hit the ground running
• Sneaker parts
• Parts of tennis shoes
• Undersurfaces
• Heels are attached to them