OpticsPlanet has a huge selection of Underwear including Undershirts, Long Underwear, Boxer Briefs and more. Whether you need to bundle up for an early morning hunt in November or you need to keep warm without sacrificing performance so you can still out preform your opponent in the big game, we have what you need from long thermal underwear and fitted thermal undershirts to boxer briefs and bras. Shop top brands like Under Armour, 5.11 Tactical, BlackHawk! and Undertech Undercover for all your Underwear needs for outdoor and everyday use. Being an official dealer of the Underwear you see here, we work hard to carry nothing but the best products so you won't have to worry about the quality you are getting with us. If you have any questions we employ a highly skilled team of product specialists who make it their job to know all of our products in and out. They are here to help answer any of those questions you might have and even can offer tips or suggestions upon request. Also, don't forget to take advantage of our free shipping on all orders of $49 or more.