Yes, summer is the best time to buy these popular thermal underwear — they’re almost 50% off

NBC Selected independently determines what we cover and recommend. When you click on or buy through our links, we earn a commission. Learn more.Deals and SalesIt’s not cold yet, and that’s exactly why you should buy thermal wear now — they’re up to 50% offSummer is the ideal time to shop for thermal underwear because they’re out of season and on sale. Aug. 20, 2026, 12:49 PM EDTJem AlabiEditorial Operations AssociateSkip to table of contentsBack-to-school season is a good time to prep for colder weather and stock up on seasonal basics like thermals.AmazonIt may seem too early to be thinking about thermals, but expert shopping is all about thinking ahead. And with end-of-year spending being typically higher than most quarters, getting a discount where you can is a must. Summer is actually the perfect time to buy thermal underwear because purchasing during the off season usually means they’re on sale, and these no.1 bestselling thermals and other styles are nearly 50% off right now.The lightweight base layers help you stay warm without adding bulk or feeling restrictive, according to shoppers. Keep reading to find out more about the deal and why it’s worth it to stock up on these cold weather basics now. Spoiler: Freezing temperatures creep up and you’ll be prepared when you really need the layers. Deal of the dayThermal Fleece Lined Underwear for Men2,364 Amazon Reviews$14.99$24.99AmazonNow 40% offThis set is made from a stretchy polyester-spandex blend that is thin enough not to feel heavy. The outer fabric is smooth so it’s easy to layer under jeans and fitted clothing without all the friction and overheating, according to one shopper. Plus, the moisture-wicking feature ensures that you won’t feel clammy or damp outdoors or during activity. What we like most about this set is the tagless design and flat seams, which means little to no itching or rubbing on your skin during wear. Thermal Underwear Set for Men$14.99$28.99AmazonNow 48% offThese thermal tights and top...