![25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ 25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ](https://media.gq.com/photos/6185a15ef654c91135682e66/3:4/w_748%2Cc_limit/Uniqlo-Heattech-extra-warm-long-johns.jpg)
25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ
![25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ 25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ](https://media.gq.com/photos/61859877cd7f3b17165aa94d/3:4/w_748%2Cc_limit/Land's-End-thermaskin-long-underwear.jpg)
25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ
![25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ 25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ](https://media.gq.com/photos/618598753e4c5bc65d81a232/3:4/w_748%2Cc_limit/32-Degrees-long-underwear.jpg)
25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ
![25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ 25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ](https://media.gq.com/photos/6357eaf177121bfec3a62af8/3:4/w_748%2Cc_limit/mack-weldon-long-underwear.png)
25 Best Thermal Underwear for Men in 2022: Base Layers from Fear of God, Patagonia, and Smartwool | GQ
![Long johns with a bum hatch': Guardian readers' secrets for staying warm outside this winter | Winter | The Guardian Long johns with a bum hatch': Guardian readers' secrets for staying warm outside this winter | Winter | The Guardian](https://i.guim.co.uk/img/media/755258352afa7443287d3689ccc0c6ee2e27bccd/0_218_5500_3299/master/5500.jpg?width=465&dpr=1&s=none)