Alpinestars Bionic Air Back Protector Insert

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Available - Requires 2-4 Business Days to Ship from Our Warehouse
 
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  • Sizing Chart
  • CE Certified Level 1 to the LATEST back protector standard (prEN1621-2:2010) allowing a slimmer, more ergonomic design.
  • The new DUAL DENSITY CELL STRUCTURE technology combines two different materials to offer lightweight impact protection with exceptional breathability and comfort.
  • Ergonomic protection plates contour to the natural curve of the back ensuring optimum fit while riding. Protection plates have special lateral "wings" that flex to fit the movement of the shoulder blades and wrap around the kidneys when in the riding position.
  • Breathable inner mesh.
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ALPINESTARS PROTECTION

KNEE GUARD
SizeJoint Width
Small 3.27 - 3.54in (8.3 - 9.0cm)
Medium 3.54 - 3.90in (9.0 - 9.9cm)
Large 3.90 - 4.37in (9.9 - 11.1cm)
X-Large 4.37 - 4.90in (11.1 - 12.4cm)

BODY ARMOUR
SizeEuroUSChestWaistHeight
X-Small 46 36 35.0 - 36.6in (89 - 93cm) 28.7 - 30.3in (73 - 77cm) 5'7" - 5'9"
Small 48 38 37.4 - 39.0in (95 - 99cm) 31.1 - 32.7in (79 - 83cm) 5'9" - 5'10"
Medium 50 40 39.8 - 41.3in (101 - 105cm) 33.5 - 35.0in (85 - 89cm) 5'10" - 5'11"
Large 52-54 42-44 42.1 - 43.7in (107 - 111cm) 35.8 - 37.4in (91 - 95cm) 5'11" - 6'
X-Large 56-58 46-48 44.5 - 46.1in (113 - 117cm) 38.2 - 39.8in (97 - 101cm) 6' - 6'1"
2X-Large 60 50 46.9 - 48.4in (119 - 123cm) 40.6 - 42.1in (103 - 107cm) 6'1" - 6'3"
3X-Large     49.2 - 50.8in (125 - 129cm) 42.9 - 44.5in (109 - 113cm) 6'3" - 6'4"
4X-Large     51.6 - 53.1in (131 - 135cm) 45.3 - 46.9in (115 - 119cm) 6'4" - 6'5"

BIONIC NECK SUPPORT
US SizeChestChest ThicknessBNS Size
 42 32.3 - 33.9in (82 - 86cm)   Slim  X-Small
 Normal  X-Small
 Barrel  Small
 44  33.9 - 35.4in (86 - 90cm)  Slim  Small
 Normal  Small
 Barrel  Small
 46 35.4 - 37.0in (90 - 94cm)   Slim  Small
 Normal  Small
 Barrel  Medium
 48  37.0 - 38.6in (94 - 98cm)  Slim  Small
 Normal  Medium
 Barrel  Medium
 50  38.6 - 40.2in (98 - 102cm)  Slim  Medium
 Normal  Medium
 Barrel  Large
52 40.2 - 41.7in (102 - 106cm)  Slim  Medium
 Normal  Medium
 Barrel  Large
54  41.7 - 43.3in (106 - 110cm)  Slim  Medium
 Normal  Large
 Barrel  Large
 56  43.3 - 44.9in (110 - 114cm)  Slim  Large
 Normal  Large
 Barrel  Large
 58  44.9 - 46.5in (114 - 118cm)  Slim  Large
 Normal  Large
 Barrel  X-Large
 60  46.5 - 48.0in (118 - 122cm)  Slim  Large
 Normal  Large
 Barrel  X-Large
 62  48.0 - 49.6in (122 - 126cm)  Slim  Large
 Normal  X-Large
 Barrel  X-Large
 64  49.6 - 51.2in (126 - 130cm)  Slim  X-Large
 Normal

 X-Large

 Barrel  -
 66  51.2 - 52.8in (130 - 134cm)  Slim  X-Large
 Normal  X-Large
 Barrel  -
 68  52.8 - 54.3in (134 - 138cm)  Slim  X-Large
 Normal  -
 Barrel  -

YOUTH BIONIC NECK SUPPORT
AgeChestChest ThicknessBNS Size
5  22.8 - 24.4in (58 - 62cm)  Slim  -
 Normal  2X-Small+
 Barrel  2X-Small+
6  24.4 - 26.0in (62 - 66cm)  Slim  2X-Small+
 Normal  2X-Small+
 Barrel  2X-Small
7 - 9  26.0 - 27.6in (66 - 70cm)  Slim  2X-Small+
 Normal  2X-Small
 Barrel  2X-Small
10 - 11  27.6 - 29.1in (70 - 74cm)  Slim  2X-Small
 Normal  2X-Small
 Barrel  X-Small
12 - 13 29.1 - 30.7in (74 - 78cm)  Slim  X-Small
 Normal  X-Small
 Barrel  X-Small
14 - 16 30.7 - 32.3in (78 - 82cm)  Slim  X-Small
 Normal  X-Small
 Barrel  X-Small

WAIST: Measured around the natural wasteline.

INSEAM: Measured from the crotch to the bottom of the leg.