Blue Force Gear MICRO RACKminus, 6 Column Small - For smaller users or those that typically wear Small T-shirts; up to 34" waist / 38" chest Large - The common sizes for most people with or without armor. When in doubt, order the large. You can always cut/tape/One-Wrap excessing webbing straps. Fully MOLLE compatible chest rig; Weight 201g Increase weight savings by using pouches with the Helium Whisper attachment system Adjustable shoulder and chest strap can be sized for use with or without armor