“Glissade Gloves”

“I purchaed these gloves for use in the backcountry, skiing, or as back-up ice climbing gloves. It snowed yesterday, so I threw them on to go shovel the driveway and sidewalk. The temp was well within the suggested range for this product. My hands were freezing within minutes! I was even doing something very active and heat-generating. If I can't use these to shovel the sidewalk for 20 minutes, how can I use them for winter activities lasting all day?”