They are very lightweight gloves with good airflow. I plan on wearing them over the summer

Ordered them and got them today. They are probably a slightly thicker weight than a standard cowhide work glove you'd get from Home Depot or Lowes in the areas without dense protective padding — finger sidewalls, etc. Also, the only ventilation is at the tips of the fingers for airflow — the knuckle perforation only lets the D3o pad breathe, the underside is solid. So, it depends on your comfort needs with that level of coverage and ventilation, given your climate. I think it might be a bit much for city riding in the Northeast summer time.

Also, take note: these are really big gloves with long fingers. I wear an Alpinestars medium (GPX glove), and ordered these in a size small and they still feel uncomfortably large and loose. They look good, but they're just too big. About the same size (maybe even a bit larger) as my cold weather Dianese Scout gloves externally, but without the insulation inside, so it's roomy.

Hopefully this helps other buyers out there. Cheers.