Related Clues:
- ''Impossible is Nothing'' sloganeer
- Saucony rival
- Sports sponsor
- London Marathon sponsor
- Running shoe brand
- Some colorful sneakers
- 64-Across rival
- Sports shoe brand
- Shoe brand with a three-stripe logo
- Running shoe choice
- Athletic shoe manufacturer
- Sports-shoe brand
- Sneakers since 1916
- Fitness brand
- Shoe brand hip in the 1980s