Alpinestars Size Chart
Note: All measurements are body measurements in cm and are intended as a guide. Not all Alpinestars models are available in all sizes. Please check the selectable sizes directly on the product page.
Men's Apparel
Jackets, Pants, Suits and Sportswear
| Euro Size | US Size | US Pant Size | Chest (cm) | Waist (cm) | Hip (cm) | Thigh (cm) | Inseam (cm) | Outer Arm (cm) | Height (cm) |
| 40 | 30 | 24 | 78–82 | 64–68 | 79–83 | 48–49 | 71–72 | 49–50 | 150–156 |
| 42 | 32 | 26 | 82–86 | 68–72 | 83–87 | 50–51 | 73–74 | 51–52 | 157–163 |
| 44 | 34 | 28 | 86–90 | 72–76 | 87–91 | 52–53 | 75–76 | 53–54 | 164–167 |
| 46 | 36 | 30 | 90–94 | 76–80 | 91–95 | 54–55 | 77–78 | 55–56 | 168–171 |
| 48 | 38 | 32 | 94–98 | 80–84 | 95–99 | 56–57 | 79–80 | 57–58 | 172–175 |
| 50 | 40 | 34 | 98–102 | 84–88 | 99–103 | 58–59 | 81–82 | 59–60 | 176–179 |
| 52 | 42 | 36 | 102–106 | 88–92 | 103–107 | 60–61 | 83–84 | 61–62 | 180–183 |
| 54 | 44 | 38 | 106–110 | 92–96 | 107–111 | 62–63 | 85–86 | 63–64 | 184–187 |
| 56 | 46 | 40 | 110–114 | 96–100 | 111–115 | 64–65 | 87–88 | 65–66 | 188–191 |
| 58 | 48 | 42 | 114–118 | 100–104 | 115–119 | 66–67 | 89–90 | 67–68 | 192–195 |
| 60 | 50 | 44 | 118–122 | 104–108 | 119–123 | 68–69 | 89–90 | 67–68 | 192–195 |
| 62 | 52 | 46 | 122–126 | 108–112 | 123–127 | 70–71 | 91–92 | 69–70 | 196–199 |
| 64 | 54 | 48 | 126–130 | 112–116 | 127–131 | 72–73 | 91–92 | 69–70 | 196–199 |
Women's Apparel
Jackets, Pants, Suits and Sportswear
| Euro Size | International Size | US Size | US Pant Size | Chest (cm) | Bust (cm) | Waist (cm) | Hip (cm) | Thigh (cm) | Inner Leg (cm) | Outer Arm (cm) | Height (cm) |
| 36 | XS | 0 | 22 | 74–80 | 78–84 | 58–64 | 82–88 | 50–52.5 | 72–74.5 | 50–52.5 | 157–162.5 |
| 38 | S | 2 | 24 | 80–86 | 84–90 | 64–70 | 88–94 | 52.5–55 | 74.5–77 | 52.5–55.5 | 162.5–168.5 |
| 40 | M | 4 | 26 | 86–90 | 90–94 | 70–74 | 94–98 | 55–57 | 77–80 | 55.5–58 | 168.5–172.5 |
| 42 | L | 6 | 28 | 90–94.5 | 94–98.5 | 74–78.5 | 98–102.5 | 57–59.5 | 80–82 | 58–60 | 172.5–176.5 |
| 44 | XL | 8 | 30 | 94.5–99 | 98.5–103 | 78.5–83 | 102.5–107 | 59.5–61.5 | 82–83.5 | 60–61.5 | 176.5–180 |
| 46 | 2XL | 10 | 32 | 99–104 | 103–108 | 83–88 | 107–112 | 61.5–64 | 83.5–84.5 | 61.5–62.5 | 180–182.5 |
| 48 | 3XL | 12 | 34 | 104–109 | 108–113 | 88–93 | 112–117 | 64–66.5 | 84.5–86 | 62.5–64 | 182.5–185 |
| 50 | 4XL | 14 | 36 | 109–114 | 113–118 | 93–98 | 117–122 | 66.5–69 | 86–87 | 64–65 | 185–188 |
Note: The official women's measurement values are complete up to Euro 50 in the source. Larger sizes should be checked directly on the product page.
Youth Apparel
Kids and Youth Sizes
| Size | International Size | US Size | Age | Chest (cm) | Waist (cm) | Hip (cm) | Thigh (cm) | Inseam (cm) | Outer Arm (cm) | Height (cm) |
| 120 | S | 22 | 6 | 60.5–65.5 | 54–58 | 68–72 | 40–42 | 51.1–56.5 | 40–44 | 120–130 |
| 130 | M | 24 | 7–8 | 65.5–70.5 | 58–62 | 72–76 | 42–44 | 56.5–61.5 | 44–48 | 130–140 |
| 140 | L | 26 | 9–10 | 70.5–75.5 | 62–66 | 75–80 | 44–46 | 61.5–66.5 | 48–52 | 140–150 |
| 150 | XL | 28 | 11–12 | 75.5–80.5 | 66–70 | 80–84 | 46–48 | 66.5–71.5 | 52–56 | 150–160 |
Footwear and Boots
Men's Shoes – Monza, Tahoe, Primate
| EU | US | JPN |
| 35 | 3.5 | — |
| 36 | 4.5 | — |
| 37 | 5 | — |
| 38 | 6 | — |
| 39 | 7 | — |
| 40 | 7.5 | — |
| 41 | 8.5 | — |
| 42 | 9 | — |
| 43 | 10 | — |
| 44 | 11 | — |
| 45 | 11.5 | — |
| 46 | 12.5 | — |
| 47 | 13 | — |
| 48 | 14 | — |
| 49 | 14.5 | — |
| 50 | 15.5 | — |
Men's Shoes – General Models
| EU | US | JPN |
| 35.5 | 4 | 22 |
| 36 | 4.5 | 22.5 |
| 37 | 5 | 23 |
| 37.5 | 5.5 | 23.5 |
| 38 | 6 | 24 |
| 38.5 | 6.5 | 24.5 |
| 39 | 7 | 25 |
| 40 | 7.5 | 25.5 |
| 40.5 | 8 | 25.5 |
| 41 | 8.5 | 26 |
| 42 | 9 | 26.5 |
| 42.5 | 9.5 | 27 |
| 43 | 10 | 27.5 |
| 43.5 | 10.5 | 28 |
| 44 | 11 | 28.5 |
| 45 | 11.5 | 29.5 |
| 45.5 | 12 | 29.5 |
| 46 | 12.5 | 30 |
| 47 | 13 | 30.5 |
| 48 | 14 | 31.5 |
Road Racing / Touring Shoes and Boots
| EU | US | JPN |
| 36 | 3.5 | 22.5 |
| 37 | 4 | 23 |
| 38 | 5 | 24 |
| 39 | 6 | 25 |
| 40 | 6.5 | 25.5 |
| 41 | 7.5 | 26 |
| 42 | 8 | 26.5 |
| 43 | 9 | 27.5 |
| 44 | 9.5 | 28.5 |
| 45 | 10.5 | 29.5 |
| 46 | 11.5 | 30 |
| 47 | 12 | 30.5 |
| 48 | 12.5 | 31.5 |
| 49 | 13.5 | 32 |
| 50 | 14 | 33 |
MX Boots
| EU | US | JPN |
| 38 | 5 | 24 |
| 39 | 6 | 25 |
| 40.5 | 7 | 25.5 |
| 42 | 8 | 26.5 |
| 43 | 9 | 27.5 |
| 44.5 | 10 | 29 |
| 45.5 | 11 | 29.5 |
| 47 | 12 | 30.5 |
| 48 | 13 | 31.5 |
| 49.5 | 14 | 32.5 |
| 51 | 15 | 33.5 |
| 52 | 16 | 34.5 |
Women's Footwear
| EU | US | JPN |
| 37 | 6 | 23 |
| 38 | 7 | 24 |
| 39 | 8 | 25 |
| 41 | 9 | 26 |
| 42 | 10 | 26.5 |
Youth MX Boots
| EU | US | JPN |
| 28 | 10J | 17.5 |
| 29 | 11J | 18.5 |
| 30.5 | 12J | 19.5 |
| 32 | 13J | 20 |
| 33 | 1 | 21 |
| 34 | 2 | 21.5 |
| 35.5 | 3 | 22.5 |
| 37 | 4 | 23 |
| 38 | 5 | 24 |
| 39 | 6 | 25 |
| 40.5 | 7 | 25.5 |
| 42 | 8 | 26.5 |
Gloves
Men's Gloves
| Size | Hand Circumference (cm) |
| S | 17.8–20.3 |
| M | 20.3–21.6 |
| L | 21.6–22.9 |
| XL | 22.9–24.1 |
| 2XL | 24.1–25.4 |
| 3XL | 25.4–27.9 |
Women's Gloves
| Size | Hand Circumference (cm) |
| XS | 16.5–17.8 |
| S | 17.8–19 |
| M | 19–20.3 |
| L | 20.3–21.6 |
| XL | 21.6–22.9 |
Helmets
Head Circumference
| Size | Head Circumference (cm) |
| XS | 53–54 |
| S | 55–56 |
| M | 57–58 |
| L | 59–60 |
| XL | 61–62 |
| 2XL | 63–64 |
Tip: For helmets, measure the head circumference at the widest point above the eyebrows. For gloves, measure around the hand behind the knuckles, excluding the thumb.
