Ideal for a day of shredding on the mountain or a backcountry ski tour, the Mountain Hardwear Advance Lightweight Boot Length Tight for Boys won't get in the way of your ski boots like the typical baselayer and because they are built with Advance Lightweight fabric, they provide wicking, fastdrying, antimicrobial comfort.The Advance Boot Length Tights have a bodyhugging fit and thanks to flatlocked construction and strategically placed seams, they won't chafe or rub you the wrong way, even after a full day on the hill.