Alpinestars S-M5 Solid - Matt Black

Original price was: $180.49.Current price is: $54.15.

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

The all-new SM5 helmet is the result of more than five years of intensive study; development and testing. We scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight helmet features a thermo-injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and light weight; while the five density EPS liner ensures the correct density in the correct area for enhanced impact absorption. Other key design features include an engineered raised area with padding to effectively reduce the forces transmitted to the collarbone and a patented visor release system that ensures the visor is released with the correct pre-determined amount of force; irrespective of the angle of impact.

Details:

  • Lightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic in two sizes.
  • The inner and outer surfaces are engineered to minimize the effects of oblique impacts.
  • Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption.
  • Patented visor release system ensures the visor is released with the correct pre-determined amount of force; irrespective of the angle of impact.
  • Maximized ventilation and high levels of heat transfer exchange thanks to multi-air inlets and exhaust ports.
  • The visor has been designed to direct air into the ports for enhanced airflow.
  • Stainless steel D-rings to ensure a tight and secure fit.
  • A size Medium weighs 1260g (ECE) 1370g (DOT).
  • The SM5 helmet conforms to both DOT certification and ECE homologation for use worldwide.
  • Side shell couple with soft EPS foam prevents damage to collarbone in the event of a crash.
  • Emergency release system and removable cheek pads permit the safe and easy removal of the cheek pads while the helmet is still on; while the 3D contoured foam ensures rider comfort.
  • Removable comfort liner with Silverplus treated anti-bacterial fabrics for excellent moisture wicking; effectively drawing perspiration away from the skin.
  • Anti-microbial liner is removable and washable.
  • Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance.
  • Soft textile chin strap is 26mm and is wider than certification requirements for optimal safety and rider comfort.