Wide temperature range combined with high-stretch seamless comfort makes this Castelli's most versatile warmer.

• Mid-weight seamless arm warmer
• Surprisingly warm without causing overheating
• Unique polyester/nylon/Lycra® 78%/15%/7% blend
• Fully seamless construction
• Folds up extra small
• Fit: Comfortable
• Temperature: 50°F - 68°F / 10°C - 20°C
• Weight: 62 g