Professional's Choice SMB 2XCool Knee Boot - Medium

Keep Those Legs Cool When the Heat Is On

Heat buildup during high-speed work isn't just uncomfortable—it's a direct threat to your horse's soundness. The Professional's Choice SMB Combo 2XCool Knee Boot in Medium combines the legendary SMB suspensory support with advanced cooling technology designed to pull heat away from the leg during barrel runs, sliding stops, and cutting work.

The 2XCool performance liner uses Triple Chill technology—cooling minerals, active moisture wicking, and rapid evaporation—to regulate temperature where it matters most. Add in anatomical knee protection and a stretch Kevlar suspensory strap, and you've got a boot built to protect without compromising performance.

Why Riders Choose the SMB 2XCool Knee Boot

• Continuous heat dissipation — The 2XCool liner actively pulls heat and moisture away from the skin, preventing the irritation and tissue stress that come with traditional neoprene boots.
• Critical suspensory support — A durable stretch Kevlar strap supports the lower leg during hard stops and tight turns without restricting natural range of motion.
• Inner knee protection — The anatomical knee guard shields against impact and clipping during high-speed maneuvers while allowing full flexion.
• Breathable moisture management — Advanced wicking materials keep the leg dry and comfortable, reducing the risk of skin funk and heat-related soreness.
• Secure, contoured fit — Designed for medium-boned horses, these boots stay in place during the most demanding work without slipping or bunching.

Best For

Barrel racers and performance riders looking for maximum leg protection and heat control during high-intensity arena work.

Frequently Asked Questions

Q: How do I know if the Medium size is right for my horse?

Measure the widest part of the fetlock. The Medium typically fits horses with a circumference of 10.75" to 11.5". You want an overlap of 0.5" to 1.5" around the leg for proper support. If you're between sizes, go with the larger boot—you can adjust the overlap, but a boot that's too tight will restrict circulation.

Q: Can I use these boots for daily training or rehab work?

Absolutely. While these are a competition favorite, the 2XCool heat management makes them ideal for everyday training or horses recovering from injury. Preventing tissue overheating is critical during rehab, and these boots are built for that long haul.

Q: Does the knee guard restrict my horse's movement?

Not at all. The guard is anatomically shaped to sit against the inner knee, protecting from clipping without interfering with flexion. Your horse can fully bend and move naturally—the guard is there for impact protection, not to limit motion.