Castelli Lycra Armwarmer Black

Enthusiastic cyclists don’t let a bit of cold stop them. To help you stay warm when you’re on your bike, even in the winter cold, Shimano developed the Breath Hyper fabric technology. By warming your body, the Breath Hyper stimulates your blood circulation so body parts that get cold quickly, such as your hands and feet, stay warm as well. It also transports moisture away from your skin, to reduce the chilly effects of perspiration. The Breath Hyper clothing keep you warm and comfortable during long winter rides.

Castelli's advanced Nano silicone is coated on these arm warmers for additional water resistance. Nano Flex fabric provides additional protection from the rain with improved flexibility.

THERMOFLEX LUXURIOUS FLEECY WARMTH

If you don't need the extra wet weather protection of Nano Flex, or if you've always been happy with traditional warmers, you'll find that Castelli's Thermoflex warmers offer the softest, most luxurious fabric combined with careful attention to construction details.

WHAT IT IS

Thermoflex is luxuriously warm and stretchy in dry conditions but is not intended for wet conditions.