ALPINESTARS MENS BOOTS SIZING:
USA Shoe Size: 3.5 4 5 6 6.5 7.5 8 9 9.5 10.5 11.5 12 12.5 13.5 14
Alpinestars/EU Size: 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

  ALPINESTARS WOMENS BOOTS SIZING:
USA Shoe Size: 5 6 7 8 8.5 9 10 11 11.5
Alpinestars/EU Size: 36 37 38 39 40 41 42 43 44

  ALPINESTARS MENS JACKETS SIZING:
USA Jacket Size: 36 38 40 42 44 46 48 50 52 54
Alpinestars/EU Size: 46 48 50 52 54 56 58 60 62 64

  ALPINESTARS MENS PANTS SIZING:
USA Waist Size: 28 30 32 34 36 38 40 42 44 46 48
Alpinestars/EU Size: 44 46 48 50 52 54 56 58 60 62 64

  ALPINESTARS MENS SUITS SIZING:
Size 48 50 52 54 56 58
Chest 36-38 38-40 42-43 44-45 46-47 48-50
Waist 28-30 30-32 32-33 33-34 34-36 36-38
Sleeve 28-30 30-31 31-32 32-33 33-34 35-37
Height 5'4"-5'-7" 5'6"-5'9" 5'8"-5'11" 5'10"-6'1" 6'0"-6'3" 6'2"-6'5"
Weight 120-135 135-150 150-165 165-180 180-200 200-255

  ALPINESTARS WOMENS JACKETS/PANTS/SUITS SIZING:
USA Size: 0 2 4 6 8 10 12 14 16
Alpinestars/EU Size: 38 40 40/42 42 44 44/46 46 48 50

  RC Back Protector Size Chart:
Models Small Medium Large
RC-1 /2pc Suit 46 48-56 58-64
Vector Race /2pc Suit - 48-54 56-60
Octane /2pc Suit, SG-1 /2pc Suit, Interceptor Jacket, RC-1 Jacket, SMK Jacket, GP-Plus Jacket, NYC Jacket - 46-50 52-64
S-MX Air-Flo Jacket 48-50 52-56 58-60
MX-1 Jacket, P-Rock Jacket, Dragster Jacket - 48 50-60
Vector Jacket, Halo Jacket, Stunt 2 Jacket, B-52 Jacket, Octane Jacket, Barcelona Jacket - 46-48 50-60
7-2 Jacket - 48-50 52-64
TZ-1 Jacket, Stage Perforated Jacket - 46-50 52-60
Neo Jacket - XS-S M-3XL
Magnum Jersey Jacket, Urban Jacket, Boa Jacket, Rod Jacket, ATL Jacket - S M-4XL
Ice Jacket, One-O-One Jacket, Spinner Jacket - S-M L-4XL
T-Magnum Jacket - S M-4XL
Space Drystar Jacket, Air-Flo Jacket - - ALL SIZES
Rhoma Drystar Jacket, 7-10 WP Jacket, Titan WP Jacket, Sigma Drystar Jacket - S M-3XL
T-Omega Jacket, T-Stunt 2 Jacket, T-Monterey Air Flo Jacket - XS-S M-3XL
T-Armstrong Jacket, T-Breeze Air-Flo Jacket, T-RC 1 Air-Flo Jacket, Sniper Jacket - XS-S M-4XL
T-Barcelona Jacket - S-M L-3XL
ACR Air-Flo Jacket - S-M L-4XL
360 R Drystar Oversuit - S-XL XXL-4XL
Exile Jacket - - M-4XL
Stella Julie /1 pc Suit, Stella TX-1 /2pc Suit, Stella TX-1 Jacket 38-46 48-50 -
Stella Octane /2pc Suit, Stella 7-2 Jacket, Stella Tokyo Jacket, Stella NYC Jacket, Stella Six-3 Jacket 38-40 42-50 -
Stella Corset ALL SIZES - -
Stella Ice Jacket, Stella 7-10 WP Jacket, Stella T-Barcelona Jacket, Stella Sigma Drystar Jacket ALL SIZES - -
Stella Barcelona, Stella Sniper Jacket XS-S M-XXL -
Stella Rebel Air-Flo Jacket - All Sizes -

 ALPINESTARS MENS S, M, L, XL, XXL SIZING:
Chest Waist Hip Inseam
From To From To From To
Small 37.4" 38.9" 31.1" 32.6" 37.4" 38.9" 32"
Medium 39.7" 41.3" 33.4" 35" 39.7" 41.3" 34"
Large 42.1" 43.7" 35.8" 37.4" 42.1" 43.7" 34"
Extra Large 44.5" 46" 38.1" 39.7" 44.5" 46" 36"
2XL 46.8" 48.4" 40.5" 42.1" 46.8" 48.4" 36"

 ALPINESTARS WOMENS XS, S, M, L SIZING:
Bust Waist Hip Inseam
  From To From To From To
Extra Small 32.6" 34.2" 24.8" 26.3" 34.2" 35.8" 31.1"
Small 35" 36.6" 27.1" 28.7" 36.6" 38.2" 31.1"
Medium 37.4" 38.9" 29.5" 31.1" 38.9" 40.5" 31.89"
Large 39.7" 41.3" 31.9" 33.4" 41.3" 42.9" 32.68"