Alpinestars Size Guides & Manuals
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Alpinestars equipment spans riding clothing, footwear, helmets, armor and airbag systems. Start with the product family and exact model; one chart or manual does not cover every item carrying the Alpinestars name.
Alpinestars sizing help at Ducshop
Start with men’s, women’s or youth sizing, then the relevant product category. Check whether your listing uses European numbers, U.S. sizes or international letters. Keep a record of the actual measurements used, including the unit, instead of relying only on the size you wear in another brand.
Match your gear to the right resource
- Jackets, pants and suits: use the appropriate apparel chart. Check the listed cut and any model-specific fit notes.
- Stella products: select the applicable women’s chart; do not infer size from men’s gear.
- Boots and shoes: confirm the sizing system printed on the listing. Conversion numbers can differ by footwear line.
- Armor and airbag systems: identify the full model and generation. Check compatibility with the garment in which it will be worn.
- Supertech R10 helmets: use the helmet’s own instructions and size guide rather than an apparel chart.
Finding the correct product manual
Contact Ducshop with the complete product name and part number for help locating the applicable manual. A Tech-Air 5, Tech-Air 5 Plasma and Tech-Air 7X are distinct systems; confirm your label before using a document.
Prepare for a fit check
Have the intended base layers and other equipment available when checking the complete setup. For airbag clearance, activation, charging or servicing, follow the matching manual. Ask for model-specific assistance when the chart or compatibility information does not resolve your question.
Leather jackets · Textile jackets · Race suits · Protective gear
Need help choosing?
Contact Ducshop with the product name, part number and your measurements before ordering. We can help locate the correct chart for older models. Contact us or call 770-424-8804.
Guide updated October 29, 2026. Always use the instructions for your exact product. Review Ducshop’s shipping and return policies before ordering.