Possible Clues:

• Exclude workers in tightly-fitting trousers
• Pass on the chocolate-covered insects?
• Warm winter wear
• Aspen attire
• Avoid social workers -- they're worn out, going downhill fast
• Jump over insects in tight trousers
• Steer clear of workers in special trousers
• Sporting trousers kept taut by underfoot bands
• Part of a winter suit
• Gear for winter and spring workers