Please Seek Physician Approval If You Have an Implantable Pacemaker or Defibrillator.  Our all-new Arctic Cool Instant Cooling Men's Short Sleeve Button Down Shirt is a must for anyone who wants to keep cool and comfortable during your daily activities. Built with our iconic magnetic front button closure system, it features state-of-the-art HydroFreeze X Technology, a cooling management system that reduces the fabric temperature to cool you down when you need it the most! The shirt's design also includes ActiveWick, our moisture wicking technology that pulls sweat away from skin and disperses it throughout the shirt, keeping you dry and cool. It's made with fabric that includes 4-way stretch, providing a full range of motion for any activity. The Instant Cooling Men's Short Sleeve Button Down Shirt has sun protection built in with UPF 50+ to keep you protected by blocking 98% of the sun's rays! This Button Down makes it easy to stay cool when you need it the most. HYDROFREEZE X PROVIDES INSTANT COOLING — Our revolutionary technology uses a multi-stage process to keep you cool and comfortable — all thanks to your own perspiration and movement. 🧲 EFFORTLESS FASTENING —  Discover the seamless integration of our iconic magnetic front button closure system for easy wearability.  BREATHABLE, COMFORTABLE FABRIC — The lightweight, 4-way stretch fabric is free-flowing and flexible, so it moves easily and naturally with your body. 🧲 6 MAGENTIC FULL PLACKET BUTTON FRONT- no over-the-head struggles. FIT IS CASUAL- Cut to be slightly trim through the chest, waist and hip, allowing the shirt to move and stretch with you in every direction. WICKS AND DISPERSES FOR RAPID EVAPORATION — ActiveWick moisture-wicking technology spreads moisture through channels in the thread for controlled release and superior cooling. SUN PROTECTION IS STANDARD— Lab-tested UPF 50+ protection blocks 98% of the sun’s harmful rays. WRINKLE RESISTANT- Made from a soft, lightweight polyester blend that makes the fabric wrinkle resistant. 100% GUARANTEE – All of our products are back by a 60-day money back guarantee  EVERY DETAIL COUNTS – Custom pearlized buttons and Self-fabric collar