Ir's February in Montreal. I can't determine how effective they are until we get warm weather. But I can appreciate how well they're made and the great service you provide even to Canadians.
Have not used them yet
Works as advertised. Due to installer error, I lost one very early after first trying them out. Didn’t even notice where/when it fell out of my sleeve. But the one that remained did provide increase airflow through my mesh jacket. So, make sure you snug up your cuffs before you set out!
These work better that I would have guessed. Helps keep you cool while riding in the beat.
Was definitely skeptical but once I tried them I loved them. Especially with gauntlet leather gloves where my jacket fits tightly around them and there is minimal air flow, I always put these on and I can actually feel the air flowing up my arm. Great for real hot days