Greggwrote a review of Castelli Nano Flex 3G Knee Warmer on December 13, 2019
Familiarity: I've used it once or twice and have initial impressions
Fit: True to size
What a garbage product. Pulled them out of the wrapping & put them on to ride & the fabric came unattached from the gripper. This is my last go around w Castelli, the quality is non-existant with their products now.