Do you also wear regular underwear when you wear long (thermal) underwear? If so, over or under the long (thermal) underwear? - Quora
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Do You Wear Undies Under Thermals? (Long Johns, Flannels, Thermal Underwear) – Decide Outside – Making Adventure Happen
![Kids Thermal Winter Warm Underwear Set Long John Bottom and Long Sleeve Top Size:Age 2-3 Years (Unisex Boy Girl Children) Colour:Black : Amazon.co.uk: Fashion Kids Thermal Winter Warm Underwear Set Long John Bottom and Long Sleeve Top Size:Age 2-3 Years (Unisex Boy Girl Children) Colour:Black : Amazon.co.uk: Fashion](https://m.media-amazon.com/images/I/81DSDy3NSFL._AC_SL1500_.jpg)