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Alpinestars Men's Back Protection Foam (Nucleon Kr-2I S) (Black, Small), 1 Pack

Free shipping on orders over $29.99

$66.99

$ 31 .99 $31.99

In Stock

About this item

  • Lightweight, flexible pu-injected impact foam
  • Contoured for an anatomical, Adaptive fit
  • Perforated for breathability and comfort


Lightweight, flexible pu-injected impact foam contoured for an anatomical, adaptive fit perforated for breathability and comfort


LindaYoshi
2025-08-27 19:33:03
Wish the description didn't say "men's" because the small size is dedicated to women's jackets. My Alpinestars Stella jacket didn't come with a back protector, so I added this for more safety and it fits perfectly in the dedicated pocket in the jacket. I was worried it would feel stiff or bulky or be visible through my jacket, but it is very light and flexible, so it forms to your figure when you put it on and does not change the look of the jacket at all when wearing it. I would highly recommend adding this to your jacket if yours didn't come with one. Always better to be safe.
Ben
2025-08-23 10:55:10
I think it's awesome. It feel sturdier than that initial foam insert. Always wearing a backpack with my work computer and lunch, I feel like there is more protection if I go down and I have a can of soup in my bag. It also creates a gap between the bag and my back, so I get more airflow on my back. It's awesome.
Jake C6R
2025-08-22 16:56:34
Fit perfectly in the armor pocket for the wife's Harley jacket!
John W. Kay
2025-07-16 17:02:44
Got this to update my Fieldsheer mesh jacket for my summer rides. It fits in the pouch as is. The cheap foam stock insert has bigger wings but this Back protector is almost the same shape. Happy to have this upgrade to my jacket.
Customer
2025-07-13 12:27:31
Seems like it will work and much better than the foam pad that comes with most jackets.
Crystal Messner
2025-07-11 13:53:19
Better than what I expected. Fit great in my riding jacket.
S2K777
2025-07-08 15:45:26
If you care about safety you have to wear this! It is comfortable and breathable.
Rocks
2025-07-02 17:11:23
Good protection. Small seems a little too small, but maybe I ordered the wrong size. I wear a medium women's Alpine star jacket. I'm average sized so I thought small would be a good fit. I mean, it still offers protection, but I thought there would be a little more back coverage.
David
2025-06-17 14:46:05
Passt perfekt in die Alpine Jacken
hy
2025-05-31 18:10:15
ドライスターライディングジャケット(秋冬春3シーズン?)最初に入っていたスポンジでは心許なかったので入れ換えま…
Kevin
2025-05-17 17:27:29
La talla no es unica, es una talla S.Lo devolvi y despues de llegar a su destino tuve que reclamar tres veces que me devolvieran el dinero...
lapo moretti
2025-05-12 11:42:35
Comprato da mettere sotto ad un dainese, ottimo per il suo scopo, essendo morbido non è troppo ingombrante
Sunil R.
2025-01-31 10:56:26
The material was cracking and very old it seems
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