Alpinestars Bionic Air Back Protector Inserts are made for insertion into your gear's back protection pouch. Once inserted, the Alpinestars Bionic Air Back Protector gives ultimate padding to your spine for accident injury prevention. CE Certified Bionic Air Back Protectors are lightweight and flexible to absorb impact pressure and cushion your spine. Protect your spine with Alpinestars Bionic Air Back Protector Inserts.
CE Certified Level 1 to the LATEST back protector standard (prEN1621-2:2010) allowing a slimmer, more ergonomic design
Slips in to your jacket’s back protector pocket to give you high levels of protection on the street without hindering riding comfort
Innovative Dual Density Honeycomb Technology (DDH) combines two different honeycomb structures to offer lightweight impact protection with exceptional breathability and comfort
Outer Honeycomb plate - Made of Polypropylene; provides an outer structure to protect the back from penetrating injuries, as well as dissipating impact force over a wider area
Inner Honeycomb foam - Made from a special elastomeric compound, this light and flexible impact foam absorbs transferred energy
ALPINESTARS
| Alpinestars Boots |
|---|
| US Size | Euro Size |
| 3 | 35 |
| 3.5 | 36 |
| 4 | 37 |
| 5 | 38 |
| 6 | 39 |
| 6.5 | 40 |
| 7.5 | 41 |
| 8 | 42 |
| 9 | 43 |
| 9.5 | 44 |
| 10.5 | 45 |
| 11.5 | 46 |
| 12 | 47 |
| 12.5 | 48 |
| 13 | 49 |
| 13.5 | 50 |
| Alpinestars Womens Boots |
|---|
| US Size | Euro Size |
| 5.5 | 36 |
| 6 | 37 |
| 7 | 38 |
| 8 | 39 |
| 8.5 | 40 |
| 9.5 | 41 |
| 10 | 42 |
| 11 | 43 |
PANTS AND JACKETS
Bust or Chest: measured around the fullest part of the chest
Waist: measured at the natural waist
Hip: measured at the widest part of the hips
Inseam: measured from the crotch to the floor
Height: natural height without shoes
WOMENS
| Alpinestars Womens Pants Sizes |
|---|
| Size | Waist | Hip | Inseam | Height |
| XS | 23.5" - 26.7" | 34.2" - 35.8" | 30" | 63" |
| SM | 26.7" - 28.7" | 36.6" - 38.2" | 31" | 64" |
| MD | 28.7" - 31.1" | 39" - 40.5" | 31" | 65" |
| LG | 31.1" - 33.5" | 41.2" - 43" | 32" | 66" |
| XL | 33.5" - 35.8" | 43.7" - 45.2" | 33" | 67" |
| 2X | 35.8" - 38.2" | 46" - 47.7" | 33" | 68" |
| Alpinestars Womens Textile Jacket Sizes |
|---|
| Size | Bust | Waist | Hip | Height |
| XS | 32.6" - 34.2" | 24.8" - 26.3" | 34.2" - 35.8" | 64 - 65" |
| SM | 35" - 36.6" | 27.1" - 28.7" | 36.6" - 38.2" | 65 - 67" |
| MD | 37.4" - 38.9" | 29.5" - 31.1" | 38.9" - 40.5" | 67 - 68" |
| LG | 39.7" - 41.3" | 31.9" - 33.4" | 41.3" - 42.9" | 68 - 69" |
| XL | 42" - 43.7" | 34.2" - 35.8" | 43.7" - 45.2" | 69 - 70" |
| 2X | 44.5" - 46" | 36.6" - 38.2" | 46" - 47.7" | 70 - 71" |
| Alpinestars Womens Leather Jacket Sizes |
|---|
| Euro Size | Bust | Waist | Hip | Height |
| 34 | 32.6" - 34.2" | 24.8" - 26.3" | 34.2" - 35.8" | 63" |
| 36 | 35" - 36.6" | 27.1" - 28.7" | 36.6" - 38.2" | 64" |
| 38 | 37.4" - 38.9" | 29.5" - 31.1" | 38.9" - 40.5" | 65" |
| 40 | 39.7" - 41.3" | 31.9" - 33.4" | 41.3" - 42.9" | 67" |
| 42 | 42" - 43.7" | 34.2" - 35.8" | 43.7" - 45.2" | 68" |
| 44 | 44.5" - 46" | 36.6" - 38.2" | 46" - 47.7" | 69" |
| 46 | 44.5" - 46" | 36.6" - 38.2" | 46" - 47.7" | 70" |
MENS
| Alpinestars Mens Pants Sizes |
|---|
| Size | US Size | Euro Size | Waist | Hip | Inseam | Height |
| XS | 28 | 44 | 29.8" | 36.2" | 30" | 69" |
| SM | 30 | 46 | 31.5" | 37.7" | 32" | 70" |
| MD | 32 | 48 | 33.1" | 39.8" | 34" | 71" |
| LG | 34 | 50 | 34.6" | 41" | 34" | 72" |
| XL | 36 | 52 | 36.2" | 42.5" | 36" | 73" |
| 2X | 38 | 54 | 37.7" | 44.1" | 36" | 75" |
| 3X | 40 | 56 | 39.4" | 45.6" | 38" | 76" |
| 4X | 42 | 58 | 41" | 47.2" | 38" | 77" |
| Alpinestars Mens Textile Jacket Sizes |
|---|
| Size | Chest | Waist | Hip | Height |
| XS | 35" - 36.6" | 28.7" - 30.2" | 35" - 36.6" | 67 - 69" |
| SM | 37.4" - 38.9" | 31.1" - 32.6" | 37.4" - 38.9" | 69 - 70" |
| MD | 39.7" - 41.3" | 33.4" - 35" | 39.7" - 41.3" | 70 - 71" |
| LG | 42.1" - 43.7" | 35.8" - 37.4" | 42.1" - 43.7" | 71 - 72" |
| XL | 44.5" - 46" | 38.1" - 39.7" | 44.5" - 46" | 72 - 73" |
| 2X | 46.8" - 48.7" | 40.5" - 42.1" | 46.8" - 48.4" | 73 - 75" |
| 3X | 49.2" - 50.7" | 42.8" - 44.5" | 49.2" - 50.7" | 75 - 76" |
| 4X | 51.6" - 53.1" | 45.2" - 46.8" | 51.8" - 53.1" | 76 - 77" |
| Alpinestars Mens Leather Jacket Sizes |
|---|
| Euro Size | Chest | Waist | Hip | Height |
| 46 | 36.6" | 29.8" | 36.6" | 69" |
| 48 | 37.4" | 31.5" | 37.4" | 70" |
| 50 | 39.3" | 33.1" | 39.8" | 71" |
| 52 | 41" | 34.6" | 41" | 72" |
| 54 | 42.5" | 36.2" | 42.5" | 73" |
| 56 | 44.1" | 37.7" | 44.1" | 75" |
| 58 | 45.6" | 39.4" | 45.6" | 76" |
| 60 | 47.2" | 41" | 47.2" | 77" |
RACING SUITS
| Alpinestars Mens Suits Sizes |
|---|
| Size | Waist | Hip | Inseam | Height |
| 36 | 29.8" | 36.2" | 30" | 69" |
| 38 | 31.5" | 37.7" | 32" | 70" |
| 40 | 33.1" | 39.8" | 34" | 71" |
| 42 | 34.6" | 41" | 34" | 72" |
| 44 | 36.2" | 42.5" | 36" | 73" |
| 46 | 37.7" | 44.1" | 36" | 75" |
| 48 | 39.4" | 45.6" | 38" | 76" |
| 50 | 41" | 47.2" | 38" | 77" |
|
| Alpinestars Womens Suits Sizes |
|---|
| Size | Bust | Waist | Hip | Inseam | Height |
| 34 | 31.5" | 23.5" | 33" | 30.2" | 63" |
| 36 | 33" | 25.2" | 34.7" | 31" | 64" |
| 38 | 34.7" | 26.7" | 36.2" | 31" | 65" |
| 40 | 36.2" | 28.2" | 37.7" | 32" | 67" |
| 42 | 37.7" | 30" | 39.2" | 32" | 68" |
| 44 | 39.2" | 31.5" | 41" | 32.7" | 69" |
| 46 | 41" | 33.2" | 42.5" | 33.5" | 70" |
GLOVES
To measure for Gloves: place a tape measure under your palm and measure from the knuckle of your forefinger to the knuckle of your pinkie finger. Note the measurement and compare it to the chart below.
| Alpinestars Glove Sizes |
|---|
| Measurement | Glove Size | Numeric Size |
| 2 1/8" - 2 5/8" | XS | 7 |
| 2 5/8" - 3 1/8" | SM | 8 |
| 3 1/8" - 3 5/8" | MD | 9 |
| 3 5/8" - 4 1/8" | LG | 10 |
| 4 1/8" - 4 5/8" | XL | 11 |
| 4 5/8" - 5 1/8" | 2X | 12 |
We do not guarantee fit. This sizing chart is a suggested guideline only.
