beware, the Blackstrap Outback Mens Long Underwear Pant is a force to be reckoned with. This baselayer is crafted with a patented synthetic 4-way stretch fabric packed with performance quality features. and Microbial resistant, you might actually start to wonder when the last time you washed these bad boys were. The 4-Way stretch provides unrestricted movement as you zoom through the trees and allows the Outback to be worn at 3/4 length without compression on your calves. Flatlock sticking means zero chaffing or itch, and a soft-flex waistband is perfect for a few apres drinks in the lodge. The Blackstrap Outback Pant is made in the USA and is something you can be proud to wear! 4-Way Stretch USA Milled Patented Fabric. Vented Crotch with Fly. Soft-Flex Waistband. Flatlock Stitching. UPF 50+ UV Protection. Made in the USA.