Possible Clues:

• Garment for one during a bad winter/one after a good spring?
• Leaping athlete
• Marathon with top athlete
• Athlete with garment down to his knees?
• Athlete's reason for covered knees?
• Athlete's big pullover
• Athlete and what covers his or her thighs?
• Athlete, one that can touch his knees?
• Dragged out item of clothing for athlete
• A warmer athlete?