Related Clues:

• Trousers
• Fittingly, the obscene phone caller wore...
• Deep breathing can become so wearing!
• Breathing exercises, but not for Boy Scouts
• They would never be short enough to make one short of breath
• Not short of breath?
• Deep breathing is so wearing
• Man may be in them but out of breath
• Out of breath, they go down to legends
• Not, in short, so wearing as to have one out of breath
• Trousers have one out of breath