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Alpinestars Tech-Air 7X System Sizing

*The Tech-Air 7X Vest must be used with an outer protective garment as the vest is NOT abrasion resistant. *Provided the correct sizing is selected, the System can can be used with all Alpinestars Tech-Air compatible garments and Tech-Air Ready garments. Both types of garments are designed with stretch panels to accommodate the inflated airbag after deployment. *The Tech-Air 7X Vest can be worn under any properly fitting motorcycle jacket, keeping in mind that the jacket must be large enough to accommodate the expansion of the airbag in the event of a crash. For textile jackets, riders need 4cm of additional space around the circumference of the body. Riders who wish to wear a leather jacket that is not Tech-Air compatible must be sure that the leather jacket has an additional 4cm of space around the circumference of the entire body. *Not intended for use with heated riding gear. Heated gear exceeds the Tech Air 7x's upper operating limit of 122° F.
Size Chest (cm) Waist (cm) Arm (cm) Height (cm)
XS 83.5-89 69-75 57.5-59 163-168
SM 89-94.5 75-81 59-60.5 169-174
MD 94.5-100 81-87 60.5-62 175-179
LG 100-105.5 87-92 64-65.5 185-189
XL 105.5-111 92-97 64-65.5 185-189
2XL 111-116.5 97-102 65.5-67 190-194

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.
  • H Height
    With no shoes on, stand with your back against a wall and your feet together. Measure from the floor to the top of your head.
  • A Arm (Shoulder to Wrist)
    Standing up straight with your arms at your sides, measure from the Acromion or summit of your shoulder, down to your wrist bone, along the outside of the arm.
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