For cyclists looking for year round versatility, the Pearl Izumi Therma Fleece Leg Warmers provide added warmth and protection: turning any pair of shorts into tights.  For more design specific details look to the bullet points below:

• Therma Fleece combines excellent moisture-transfer, fleeced warmth, comfort and durability
• Ankle zippers with elastic gripper for easy on and off
• Tunneled elastic construction comfortably holds warmer in position
• Turns any pair of shorts into tights
• Content: 46% polyester/38% nylon/16% Lycra®