Sturdy and grippy, Chaco's Rapid Pro Sandal is made for professional river guides and rafters who want professional performance out of their paddling sandals. This sandal features synthetic jacquard webbing for water-ready durability and a fully adjustable fit that we can lock in for comfortable rafting, wading, and riverside hiking and scrambling. The Rapid Pro's main calling card is traction- with sticky Vibram Megagrip outsoles developed specifically for Chaco that include 3. 5mm grooved lugs designed for watery environments, rubber renowned for wet and dry grip, and biting edges in the toes and heels for better rock scrambling.