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Klim Ai-1 Air Bag Vest Sizing

This vest should fit snugly but not so tight you can't breathe comfortably. Manufacturer advises that you need a two inch gap between your vest and jacket to account for deployment. Be sure to keep this in mind when choosing a jacket to wear over the vest.
Size Chest (in) Waist (in) Hip (in)
SM 34-36 31-33 34-36
MD 38-40 35-37 38-40
LG 42-44 39-41 42-44
XL 46-48 43-45 46-48
2XL 50-52 47-49 50-52
3XL 54-56 51-53 54-56

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How to Measure

  • C Chest
    Measure around the fullest part of your chest, under the armpits, keeping the measuring tape parallel to the ground.
  • W Waist
    Measure around your natural waistline, around the top of the hip bones, inline with the navel while keeping the measuring tape parallel to the ground.
  • HP Hips
    Measure the circumference, from pelvic bone to pelvic bone, at the widest part of your hips below the waist.
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