Alpinestars A-4 Plasma Chest Protector

Original price was: $189.95.Current price is: $57.97.

Clothing Size Conversion Chart
Category US EU UK Chest (in) Waist (in) Hips (in)
Men XS 44 34 32-34 26-28 33-35
S 46 36 34-36 28-30 35-37
M 48 38 38-40 32-34 39-41
L 50 40 42-44 36-38 43-45
XL 52 42 46-48 40-42 47-49
Women XS 32 6 31-32 24-25 33-34
S 34 8 33-34 26-27 35-36
M 36 10 35-36 28-29 37-38
L 38-40 12-14 37-39 30-32 39-41
XL 42 16 40-42 33-35 42-44
Youth XS 128 7 26-28 23-24 26-28
S 134 8 28-30 24-25 28-30
M 140 10 30-32 25-26 30-32
L 146 12 32-34 26-27 32-34
XL 152 14 34-36 27-28 34-36
Pants Size Conversion Chart
CategoryUSEUUKWaist (in)Hip (in)Inseam (in)
Men284428283430
304630303631
324832323832
345034344033
365236364234
Women0324243430
2346253530
4368263631
63810273832
84012284032
Shoes Size Conversion Chart
CategoryUSEUUKFoot Length (in)
Men6395.59.25
7406.59.625
8417.510
9428.510.25
10439.510.625
114410.511
124511.511.25
134612.511.625
Women5352.58.5
6363.58.875
7374.59.25
8385.59.625
9396.510
10407.510.25
11418.510.625
12429.511
M (Unisex)5374.58.75
6385.59
7396.59.5
8407.510
9418.510.25
10429.510.625
114310.511
124411.511.25
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Description

Alpinestars A-4 Plasma Chest Protector Engineered for the rigors of off-road endeavors, the A-4 Plasma Chest Protector stands out with its semi-rigid thermoplastic polyhedron front shield coupled with a Nucleon Plasma back protector. It emphasizes real-world application with a design that’s lightweight, breathable, and conforms to the rider’s body while ensuring exceptional defense against impacts. The front chest shield benefits from a geodesic polyhedron pattern that minimizes material usage while maintaining structural integrity, achieving superior strength with less material compared to flat surfaces. This ingenuity not only reduces weight but also enhances ventilation, yielding a chest protector whose parts synergize to exceed expectations. On the flip side, the Nucleon Plasma Back Protector is sculpted from a USDA Certified Biobased viscoelastic compound. It boasts adaptable flexibility, hugging the rider snugly and dissipating forces effectively during impacts. It guarantees extensive protection and cooling properties, fostering a safer and more focused off-road experience. Features: Lightweight and ultra-ventilated chest armor Constructed from USDA certified, biobased, eco-friendly and sustainable impact absorbing material Equipped with adjustable shoulder and side straps for an optimized performance fit Removable soft tactile thermoformed rib and shoulder padding for enhanced comfort Over-injected flexible side wings of the chest protector perfectly follow the body’s contours for superior comfort and freedom of movement Lining on the back protector offers a soft tactile feeling against the skin while maintaining the integral structure of the protectors and reducing the risk of any material tearing Lining is ribbed for superior airflow while also reducing the amount of material that is in contact with the skin Perforated 3D mesh chassis also offers additional protection against tire roost Bionic Neck Support compatibility via the BNS shoulder pull tabs situated on the removable soft tactile thermoformed shoulder pads Compatible with the Nucleon Plasma Extended Roost Coverage kit which includes upper and lower chest extensions and an additional Y-strap system, allowing you to use the A-4 Chest Protector without the back protector According to European statutory law, the CE mark is a conformity requirement for the marketing of this product. The following standards apply: Back protector: EN 1621-2:2014 LEVEL 1 Chest protector: EN 1621-3:2018 LEVEL 1

Additional information
color

Size

MD/LG

,

XL-2XL