Design: BOA-lacing system for secure wear Pull-on loops for simple on-and-off In-Shoe Comfort: Full closed-cell neoprene foam lining for added comfort Durability & Traction: Vibram traction for optimal grip Full TPU coated upper for long-lasting strength Rubber toe and overlay on heel for increased protection TPU outsole plate built for stud and cleat retention Simms Men's Guide BOA Vibram Boots