Alpinestars Sizing

Alpinestars Footwear Conversion Chart

Euro Size USA Men's USA Women's
36 3.5 5
37 4 6
38 5 7
39 6 8
40 6.5 8.5
41 7.5 9
42 8 10
43 9 11
44 9.5 11.5
45 10.5
46 11.5
47 12
48 12.5
49 13.5
50 14

Alpinestars Men's Apparel

Size (Tops) Pants Measurements (in)
Europe Letter United States Size Chest Waist Hip Thigh Inseam Outer Arm Height
42 XXS 32 26 32¼ - 33⅞ 26¾ - 28⅜ 32⅝ - 34¼ 19⅝ - 20⅛ 28¾ - 29⅛ 20⅛ - 20¾ 5'3" - 5'4"
44 XXS/XS 34 28 33⅞ - 35⅜ 28⅜ - 29⅞ 34¼ - 35⅞ 20½ - 20⅞ 29½ - 29⅞ 20⅞ - 21¼ 5'4" - 5'5"
46 XS/S 36 30 35⅜ - 37 29⅞ - 31½ 35⅞ - 37⅜ 21¼ - 21⅝ 30⅜ - 30¾ 21⅝ - 22 5'6" - 5'7"
48 S/M 38 32 37 - 38⅝ 31½ - 33⅛ 37⅜ - 39 22 - 22½ 31⅛ - 31½ 22½ - 22⅞ 5'7" - 5'8"
50 M 40 34 38⅝ - 40⅛ 33⅛ - 34⅝ 39 - 40½ 22⅞ - 23¼ 31⅞ - 32¼ 23¼ - 23⅝ 5'9" - 5'10"
52 L 42 36 40⅛ - 41 ¾ 34⅝ - 36¼ 40½ - 42⅛ 23⅝ - 24 32⅝ - 33⅛ 24 - 24⅜ 5'11" - 6'
54 XL 44 38 41¾ - 43¼ 36¼ - 37¾ 42⅛ - 43¾ 24⅜ - 24¾ 33½ - 33⅞ 24¾ - 25¼ 6' - 6'2"
56 XL/XXL 46 40 43¼ - 44⅞ 37¾ - 39¼ 43¾ - 45¼ 25¼ - 25⅝ 34¼ - 34⅝ 25⅝ - 26 6'2" - 6'3"
58 XXL 48 42 44⅞ - 46½ 39¼ - 41 45¼ - 46⅞ 26 - 26⅜ 35 - 35⅜ 26⅜ - 26¾ 6'3" - 6'5"
60 3XL 50 44 46½ - 48 41 - 42½ 46⅞ - 48⅜ 26¾ - 27⅛ 35 - 35⅜ 26⅜ - 26¾ 6'3" - 6'5"
62 3XL/4XL 52 46 48 - 49⅝ 42½ - 44⅛ 48⅜ - 50 27½ - 28 35⅞ - 36¼ 27⅛ - 27½ 6'5" - 6'6"
64 4XL 54 48 49⅝ - 51⅛ 44⅛ - 45⅝ 50 - 51⅝ 28⅜ - 28½ 35⅞ - 36¼ 27⅛ - 27½ 6'5" - 6'6"
Size (Tops) Pants Measurements (cm)
Europe Letter United States Size Chest Waist Hip Thigh Inseam Outer Arm Height
42 XXS 32 26 82 - 86 68 - 72 83 - 87 50 - 51 73 - 74 51 - 52 159 - 163
44 XXS/XS 34 28 86 - 90 72 - 76 87 - 91 52 - 53 75 - 76 53 - 54 164 - 167
46 XS/S 36 30 90 - 94 76 - 80 91 - 95 54 - 55 77 - 78 55 - 56 168 - 171
48 S/M 38 32 94 - 98 80 - 84 59 - 99 56 - 57 79 - 80 57 - 58 172 - 175
50 M 40 34 98 - 102 84 - 88 99 - 103 58 - 59 81 - 82 59 - 60 176 - 179
52 L 42 36 102 - 106 88 - 92 103 - 107 60 - 61 83 - 84 61 - 62 180 - 183
54 XL 44 38 106 - 110 92 - 96 107 - 111 62 - 63 85 - 86 63 - 64 184 - 187
56 XL/XXL 46 40 110 - 114 96 - 100 111 - 115 64 - 65 87 - 88 65 - 66 188 - 191
58 XXL 48 42 114 - 118 100 - 104 115 - 119 66 - 67 89 - 90 67 - 68 192 - 195
60 3XL 50 44 118 - 122 104 - 108 119 - 123 68 - 69 89 - 90 67 - 68 192 - 195
62 3XL/4XL 52 46 122 - 126 108 - 112 123 - 127 70 - 71 91 - 92 69 - 70 196 - 199
64 4XL 54 48 126 - 130 112 - 116 127 - 131 72 - 73 91 - 92 69 - 70 196 - 199

Alpinestars Women's Apparel

Size (Tops) Pants Measurements (in)
Europe Letter United States Size Chest Bust Waist Hip Thigh Inseam Outer Arm Height
36 XXS 0 22 29⅛ - 30¾ 30¾ - 32¼ 22⅞ - 24⅜ 32¼ - 33⅞ 19⅝ - 20⅛ 28⅜ - 28¾ 19⅝ - 20⅛ 5'2" - 5'3"
38 XXS/XS 2 24 30¾ - 32¼ 32¼ - 33⅞ 24⅜ - 26 33⅞ - 35⅜ 20½ - 20⅞ 29⅛ - 29½ 20½ - 20⅞ 5'4" - 5'5"
40 S 4 26 32¼ - 33⅞ 33⅞ - 35⅜ 26 - 27½ 35⅜ - 37 21¼ - 21⅝ 29⅞ - 30⅜ 21¼ - 21⅝ 5'5" - 5'6"
42 M 6 28 33⅞ - 35⅜ 35⅜ - 37 27½ - 29⅛ 37 - 38⅝ 22 - 22½ 30¾ - 31⅛ 22 - 22½ 5'7" - 5'8"
44 L 8 30 35⅜ - 37 37 - 38⅝ 29⅛ - 30¾ 38⅝ - 40⅛ 22⅞ - 23¼ 31½ - 31⅞ 22⅞ - 23¼ 5'8" - 5'9"
46 L/XL 10 32 37 - 38⅝ 38⅝ - 40⅛ 30¾ - 32¼ 40⅛ - 41¾ 23⅝ - 24 32¼ - 32⅝ 23⅝ - 24 5'10" - 5'11"
48 XL/XXL 12 34 38⅝ - 40⅛ 40⅛ - 41¾ 32¼ - 33⅞ 41¾ - 43¼ 24⅜ - 24¾ 33⅛ - 33½ 24⅜ - 24¾ 5'11 - 6'
50 XXL 14 36 40⅛ - 41¾ 41¾ - 43¼ 33⅞ - 35⅜ 43¼ - 44⅞ 25¼ - 25⅝ 33⅛ - 33½ 24⅜ - 24¾ 5'11 - 6'
52 XXL/3XL 16 38 41¾ - 43¼ 43¼ - 44⅞ 35⅜ - 37 44⅞ - 46½ 26 - 26⅜ 33⅞ - 34¼ 25¼ - 25⅝ 6'1" - 6'2"
54 3XL 18 40 43¼ - 44⅞ 44⅞ - 46½ 37 - 38⅝ 46½ - 48 26¾ - 27⅛ 33⅞ - 34¼ 25¼ - 25⅝ 6'1" - 6'2"
Size (Tops) Pants Measurements (cm)
Europe Letter United States Size Chest Bust Waist Hip Thigh Inseam Outer Arm Height
36 XXS 0 22 74 - 78 78 - 82 58 - 62 82 - 86 50 - 51 72 - 73 50 - 51 157 - 160
38 XXS/XS 2 24 78 - 82 82 - 86 62 - 66 86 - 90 52 - 53 74 - 75 52 - 53 161 - 164
40 S 4 26 82 - 86 86 - 90 66 - 70 90 - 94 54 - 55 76 - 77 54 - 55 165 - 168
42 M 6 28 86 - 90 90 - 94 70 - 74 94 - 98 56 - 57 78 - 79 56 - 57 169 - 172
44 L 8 30 90 - 94 94 - 98 74 - 78 98 - 102 58 - 59 80 - 81 58 - 59 173 - 176
46 L/XL 10 32 94 - 98 98 - 102 78 - 82 102 - 106 60 - 61 82 - 83 60 - 61 177 - 180
48 XL/XXL 12 34 98 - 102 102 - 106 82 - 86 106 - 110 62 - 63 84 - 85 62 - 63 181 - 184
50 XXL 14 36 102 - 106 106 - 110 86 - 90 110 - 114 64 - 65 84 - 85 62 - 63 181 - 184
52 XXL/3XL 16 38 106 - 110 110 - 114 90 - 94 114 - 118 66 - 67 86 - 87 64 - 65 185 - 188
54 3XL 18 40 110 - 114 114 - 118 94 - 98 118 - 122 68 - 69 86 - 87 64 - 65 185 - 188

Alpinestars Youth Apparel

Size   Measurements (in)
Letter United States Years Chest Waist Hip Thigh Inseam Outer Arm Height
S 22 6 - 7 23⅞ - 25¾ 21¼ - 22⅞ 26¾ - 28⅜ 15¾ - 16½ 20⅛ - 22¼ 15⅜ - 16⅞ 3'7" - 3'11"
M 24 8 - 10 25¾ - 27¾ 22⅞ - 24⅜ 28⅜ - 29⅞ 16½ - 17⅜ 22¼ - 24¼ 16⅞ - 18½ 3'11" - 4'3"
L 26 11 - 12 27¾ - 29¾ 24⅜ - 26 29⅞ - 31½ 17⅜ - 18⅛ 24¼ - 26⅛ 18½ - 20⅛ 4'3" - 4'9"
XL 28 12 - 14 29¾ - 31¾ 26 - 27½ 31½ - 33⅛ 18⅛ - 18⅞ 26⅛ - 28⅛ 20⅛ - 21⅝ 4'9" - 5'3"
Size   Measurements (cm)
Letter United States Years Chest Waist Hip Thigh Inseam Outer Arm Height
S 22 6 - 7 60.5 - 65.5 54 - 58 68 - 72 40 - 42 51.1 - 56.5 39 - 43 109 - 120
M 24 8 - 10 65.5 - 70.5 58 - 62 72 - 76 42 - 44 56.5 - 61.5 43 - 47 120 - 130
L 26 11 - 12 70.5 - 75.5 62 - 66 76 - 80 44 - 46 61.5 - 66.5 47 - 51 130 - 145
XL 28 12 - 14 75.5 - 80.5 66 - 70 80 - 84 46 - 48 66.5 - 71.5 51 - 55 145 - 159

Alpinestars Men's Riding Suits

  Chest Waist Hip Inseam Height
Italy Size in cm in cm in cm in cm in cm
46 36.25 92 29.875 76 36.25 92 30 76.2 5'9" 174
48 37.75 96 31.5 80 37.75 96 32 81.3 5'10" 177
50 39.375 100 33.125 84 39.375 100 34 86.4 5'11" 180
52 41 104 34.625 88 41 104 34 86.4 6' 183
54 42.5 108 36.25 92 42.5 108 36 91.4 6'1" 186
56 44.125 112 37.75 96 44.125 112 36 91.4 6'3" 189
58 45.625 116 39.375 100 45.625 116 38 96.5 6'4" 192
60 47.25 120 41 104 47.25 120 38 96.5 6'5" 195
62 48.75 124 42.5 108 48.75 124 40 101.5 6'6" 198
64 50.25 128 44 112 50.25 128 40 101.5 6'6" 198

Alpinestars Women's Riding Suits

Size Chest Waist Hip Inseam Height
Italy USA in cm in cm in cm in cm in cm
36 0 31.5 80 23.5 60 33 84 30.25 77 5'3" 160
38 2 33 84 25.25 64 34.75 88 31 79 5'4" 163
40 4 34.75 88 26.75 68 36.25 92 31 79 5'5" 166
42 6 36.25 92 28.25 72 37.75 96 32 81 5'7" 169
44 8 37.75 96 30 76 39.25 100 32 81 5'8" 172
46 10 39.25 100 31.5 80 41 104 32.75 83 5'9" 175
48 12 41 104 33.25 84 42.5 108 33.5 85 5'10" 178
50 14 41.5 108 34.6 88 44 112 34.25 87 5'9" 181

Alpinestars Adult Boots & Shoes

Euro Size 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
USA Men's Size 3 1/2 4 5 6 6 1/2 7 1/2 8 9 9 1/2 10 1/2 11 1/2 12 12 1/2 13 1/2 14
USA Women's Size 5 6 7 8 8 1/2 9 10 11 11 1/2

Alpinestars Youth Boots

USA Youth Size K10 K11 K12 K13 1 2 3 4 5 6 7 8
Euro Size 28 29 30.5 32 33 34 35.5 37 38 39 40.5 42
Japan Size 17.5 18.5 19.5 20 21 21.5 22.5 23 24 25 25.5 26.5

Alpinestars Bionic Neck Support

USA Size Euro Size Chest Circumference Chest Thickness
Inches Centimeters Slim Normal Barrel
5 years old 22 7/8" - 24 3/4" 58-62 cm   XXS+ XXS+
6 years old 24 3/4" - 26" 62-66 cm XXS+ XXS+ XXS
7-9 years old 26" - 27 1/4" 66-70 cm XXS+ XXS XXS
10-11 years old 27 1/4" - 29 1/8" 70-74 cm XXS XXS XS
12-13 years old 29 1/8" - 30 3/4" 74-78 cm XS XS XS
14-16 years old 30 3/4" - 32 1/4" 78-82 cm XS XS XS
32 42 32 1/4" - 33 7/8" 82-86 cm XS XS S
34 44 33 7/8" - 35 1/8" 86-90 cm S S S
36 46 35 1/8" - 37" 90-94 cm S S M
38 48 37" - 38 1/8" 94-98 cm S M M
40 50 38 1/8" - 40 1/2" 98-102 cm M M L
42 52 40 1/2" - 41 3/4" 102-106 cm M M L
44 54 41 3/4" - 43 1/4" 106-110 cm M L L
46 56 43 1/4" - 44 7/8" 110-114 cm L L L
48 58 44 7/8" - 46 1/2" 114-118 cm L L XL
50 60 46 1/2" - 48" 118-122 cm L L XL
52 62 48" - 49 7/8" 122-126 cm L XL XL
54 64 49 7/8" - 51 1/8" 126-130 cm XL XL  
56 66 51 1/8" - 52 3/4" 130-134 cm XL XL  
58 68 52 3/4" - 54 1/4" 134-138 cm XL    
Size XXS+ is size XXS with the included additional chest padding applied

Alpinestars Bionic Air & Bio Armor Back Protector Inserts

Alpinestars Suit or Jacket Styles Armor Back Protector Insert Size
S M L
1-Piece Suits
Atem   Size 46-50 Size 52-64
Motegi   Size 44-50 Size 50-52
Orbiter   Size 46-50 Size 52-64
2-Piece Suits
Carver   Size 46-50 Size 52-64
GP Pro   Size 44-50 Size 50-52
Motegi   Size 46-50 Size 52-64
Leather Jackets
Atem   Size 44-50 Size 52-64
Celer   Size 44-50 Size 52-64
GP Plus R   Size 44-50 Size 52-64
GP Pro   Size 44-50 Size 50-52
Hades   Size 44-50 Size 52-64
Huntsman   Size 44-50 Size 52-64
Jaws   Size 44-50 Size 52-64
Phantom   Size 44-50 Size 52-64
Stella GP Plus R   Size XS-S Size M-XXL
Vented Leather Jackets
GP-M   Size 50 Size 52-56
GP-R   Size 44-50 Size 52-64
GP Plus R   Size 44-50 Size 52-64
Jaws   Size 44-50 Size 52-64
T-Z1 Reload   Size 46-50 Size 52-64
Leather/Textile Jackets
GP Tech   Size 44-50 Size 52-64
Renee Leather/Textile Size 38-40 Size 42-50  
Vika   Size 36-40 Size 42-50
Textile Jackets
Andes Drystar   Size S-M Size L-4XL
Capetown Air Drystar   Size 46-50 Size 52-64
Durban Gore-Tex   Size 46-50 Size 52-60
Dusk 3 Layer Waterproof   Size S-M Size L-3XL
Gunner Waterproof   Size S-M Size L-4XL
Koln Drystar   Size 44-50 Size 50-52
Lance 3 Layer Waterproof   Size S-M Size L-3XL
Lucerne Drystar   Size 44-50 Size 50-52
Mack   Size S-M Size L-3XL
Megaton Drystar   Size S-M Size L-4XL
Messenger Waterproof   Size XS-M Size L-4XL
New Land Gore-Tex   Size S Size M-4XL
Quasar   Size S-M Size L-4XL
Scion 2 Layer Waterproof   Size S-M Size L-3XL
Stella Andes Drystar Size XS-M Size L-XL  
Stella Cassie Down Size XS-S Size M-XXL  
Stella Francie Size XS-S Size M-XXL  
Stella New Land Gore-Tex Size XS-L Size XL-3XL  
Stella Paradise Size XS-3XL    
Stella Quasar Size XS-L Size XL-3XL  
Stella T-GP Plus R Air Size XS-S Size M-3XL  
T-GP Plus Air   Size S-M Size L-4XL
T-GP Plus R Air   Size S-M Size L-4XL
T-GP Pro   Size S-M Size L-4XL
T-GP R Air   Size S-M Size L-4XL
T-Jaws Air   Size S-M Size L-4XL
T-Jaws Waterproof   Size S-M Size L-4XL
T-Scream Air   Size M Size L-XXL
Tech ST Gore-Tex   Size 46-56 Size 58-64
Tyler Down   Size S-M Size L-3XL
Valparaiso Drystar   Size S-M Size L-4XL
Verona Waterproof   Size XS-S Size M-4XL