To get the most of the advanced load-bearing ability of your AttackPAK, a properly sized belt and frame is essential. Getting the right fit ensures that all your pack components work together to relieve stress on the core, shoulders and back by transferring the weight of the load to the hips and legs.
Measuring for AttackPAK frame size
Step 1. Take a measurement from your C7 to the floor
C7 is the bony part of your spine at the back of your neck, just above your shoulders. Stand straight and drop the tape down your back to the floor
Step 2. Take a measurement from your waist/hips to the floor
Place your hands on your hipbones with your thumbs pointing back toward your spine and your fingers wrapping forward. Hold your hands out parallel to the floor and drop the tape from your hands to the floor
Using the measurements you took above, in inches, put the numbers into this formula: