221B Tactical Maxx-Dri Vest 5.0 Body Armor Ventilation Extra Large Black. Some 300000 police military and other wearers of body armor have embraced Maxx-Dri Vest since we launched version 1.0 a decade ago as the flagship product in the founding of 221B Tactical. On the 10th Anniversary of MDV we launch the newest and best the 5th generation Maxx-Dri Vest 5.0. MDVs many thousands of ecstatic reviews testify that it not only works: It works brilliantly. Many MDV users call it "a game changer" MDVs patented ultra-lightweight 3D material separates your base-layer shirt from your body armor vest. We call this "creating a layer of space between your armor and your body. It lets the body breathe under the armor. Heat and perspiration can get out and fresh air can come in. In hot weather you stay cool. In cold weather you dont freeze from frozen sweat after going in and out of cars and buildings. MDV 5.0 makes wearing body armor much more bearable. Specifications for 221B Tactical Maxx-Dri Vest 5.0 Body Armor Ventilation: Manufacturer: 221B Tactical Color: Black Size: Extra Large Fabric/Material: Patented Material Quantity: 1 Accessory Attachment System: Strap Height: 5.1 - 6.6 in Features of 221B Tactical Maxx-Dri Vest 5.0 Body Armor Ventilation Removeable Side Straps Better Stability Upgraded Material More Coverage Package Contents: 221B Tactical Maxx-Dri Vest 5.0 Body Armor Ventilation 221B Tactical MDV5-XL-BLK: Maxx-Dri Vest 5.0 Body Armor Ventilation Extra Large Black