The Speedgoat WP is a waterproof version of the best selling Speedgoat 3. The SKYSHELL waterproof booty with gusseted tongue does an excellent job keeping your feet dry and debris out in messy sloppy rainy snowy "why did I sign up for this", conditions. This shoe is slightly wider than the non-waterproof speedgoat to allow for added stability on wet terrain. The shoe still has the trail tested Vibram Megagrip rubber from the non waterproof version that has a healthy supply of lugs to give you the control you need. Weighing in at only 11.4 ounces, this is one of the lightest waterproof trail runners out there. When conditions are sub par and you need a shoe to handle it, these shoes are your new best friend.