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This long underwear kept travelers warm even in the coldest weather.

But all long johns are not created equal.

October Amazon Prime Day Long Johns Underwear on Sale Tout

Credit:Travel + Leisure / Tyler Roeland

thermal underwear is a wintertime wardrobe staple.

I bought two packs and am glad I did.

So, what are you waiting for?

October Amazon Prime Day Thermajohn Long Johns Navy

Amazon

Looking to expand your collection beyond Thermajohns?

Keep reading for more thermal underwear brands that are worth a click and a potential spot in your closet.

Shop More T+L-Approved Picks

October Amazon Prime Day Thermajohn Long Johns Black

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October Amazon Prime Day Place and Street Cotton Thermal

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October Amazon Prime Day American Trends Thermal Underwear Set

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October Amazon Prime Day Fruit of the Loom Underwear Set

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October Amazon Prime Day Cuddl Duds Thermal Underwear Long Johns

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