The Simms Guide BOA Wading Boots feature the BOA Fit System, allowing for precise, micro-adjustable lacing that ensures a secure and custom fit for all-day comfort on the water. Designed with Vibram Idrogrip outsoles, these boots provide exceptional traction on wet and slippery surfaces, delivering stability to power through all obstacles in the river systems. The rugged TPU-coated upper and rubber toe and heel overlays offer excellent durability and protection against abrasion in rough terrains. Built for durability and performance, these wading boots feature a closed-cell neoprene foam lining for enhanced comfort and warmth in cold waters. Dry, wet, icy, or muddy, you know that spending hours a day working the water demands a good fit for better stability and overall comfort. After all, you want to think about fishing and not your uncomfortable feet. Simms Guide BOA Wading Boots are cleat-compatible with Simms Hardbite Studs, Star Cleats, and Alumibite Cleats, making for a better way to make whole days on the water comfortable and productive. Material: Soles: Vibram Upper: TPU-coated Toe and Heel: Rubber overlay Lining: Closed-cell neoprene Outsole: TPU plate BOA lacing system provides unmatched simplicity and security Pull-on loops for easy on and off Imported Please note: To allow proper room for a neoprene stockingfoot, Simms recommends ordering the Simms boot size that corresponds to your regular shoe size. If you are a half size, size up to the next whole size.