Vest does a great job on construction sites in Nebraska winter single digits. Has made winter work so much more tolerable. Should have invested in one years ago. Two thumbs up. Did get extra batteries as well.

This vest has been nice. But the battery absolutely does not last. On a full charge on low. I'm lucky to get 5 hours, which is half of the 10 hours you guys claim. That sucks as I work in the elements for 8 to 10 hours. Have only had the vest about 2 weeks.

My husband is wearing this vest while working outdoors, he's a logger. We've had some really cold days this January and he reported that after 3 hours on high, the battery needed to be recharged. He was hoping the charge would last longer. Construction of the vest seems to be rugged enough for his work. He's happy to have the 3 hours of warmth.

This is a high quality work vest. Heat works well. Bring two batteries for a full day of work.