New and unused! However, please refrain from purchasing if you are sensitive to items stored at home. This item is not subject to price reduction. 《MAC HEAT》 ● Winter functional material recommended by ㈱Mac House. ● Fleece-lined innerwear scientifically designed for ultimate warmth. ● Amazing warmth ● Uses polyester, a "far-infrared processed fiber." This fiber enhances heat retention by incorporating substances like ceramics, which easily absorb and re-emit far-infrared rays, into the polyester yarn. 《Features》 ★ Far-infrared processing ★ Heat retention ★ Body fit ★ Static electricity suppression Due to the thickness, I will remove it from the original packaging and repackage it in a new bag before shipping. Please understand this before purchasing. I will offer a discount to those who purchase other items at the same time. Please comment before purchasing. #Navy #Underwear #Lingerie #Long-sleeved V-neck #Commuting #School #Change of clothes #Sleepover #Sports #Fleece-lined #Snow country #Snow mountain #Skiing #Snowboarding