Glove and mitten protection in extreme cold weather: an Antarctic study.

Conclusions Coverings that maintained finger temperatures within a comfortable and safe range (at or above 59°F/15°C) included the heated gloves and mittens (including some with the power off) and mittens with liners. Mittens without liners (shell) generally performed better than unheated gloves. Better results generally paralleled the item's cost. Inserting chemical heat warmers at the wrist increased heat loss, possibly through the exposed area around the warmer. PMID: 29516824 [PubMed]
Source: International Journal of Circumpolar Health - Category: International Medicine & Public Health Tags: Int J Circumpolar Health Source Type: research