The Exospine™ is designed for the best weight distribution and fit, built around human ergonomics. Designed to pair with our packs, belts, and gravity pockets. Removes load from your shoulders and distributes load to your hips for sustained efficiency and improved performance.
Spine
Customize the length of your AttackPAK Exospine™ and you’ll experience a fit like no other pack on the planet.
Choose our lightweight pack frame for general use and loads under 50 pounds
Choose the heavy-duty pack frame for loads over 50 pounds
Find your fit for complete instructions on measuring your AttackPAK Exospine™ size.
Our goal is to deliver the correct size the first time. We offer exact measurement fitting available exclusively on our website. The actual measurement of your waist will be the most accurate.
Pants sizes vary by manufacturer, and will usually be smaller than your actual waist measurement by 3-4". It is also best to measure over anything that will be worn under the belt, such as an inner belt, regular pants belt, or padding. Belts will usually add .5-1.5"; padding can add 2-3"+ depending on thickness.
If you order the wrong size, we will help you get the correct size and can help accommodate special sizing.
Retail Belt Sizing
This table is for sizing AttackPAK belts not bought on our website. At retail locations that carry our products, we sell in sizes as opposed to the numeric measurements seen on our website.
AttackPAK Size
Adjustment Range
Belt Pad Length
SM: Small
27" to 32.5"
26"
MD: Medium
31" to 36.5"
30"
LG: Large
35" to 40.5"
33"
XL: Xtra Large
39" to 44.5"
36"
XX: 2 Xtra Large
43" to 48.5"
40"
Custom or Over 48"
Made for you
Made for you
Use a string and tape measure, or measure your belt from the end of the buckle to the hole that you use
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
Iliac Crest 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
Most of our packs have 4" of adjustment in harness height, but our lightweight Paladin pack for competition shooters eliminates adjustment to save weight. Order with the confidence that we will communicate to get you custom fitted.
AttackPAK 
Spine
Spine
