UNDERCARE Men's Adaptive Knit Boxer Briefs have easy-on, easy-off hidden Velcro brand closure at the waist and sides, giving you the comfort and style of a knit boxer brief without the hassle of getting your feet and legs through a leg opening.  Easy to put on independently and take off quickly. Now available in Extended Sizes 1X-4X. The extended size range was designed to provide you with the best fit for your body.