This looks like a decent option slotted between just a jacket and going with an airbag system. Plus it can solve the issue of back protectors each manufacturer leaves out from their jackets.
The airbags do add some bulk for sure. It did not take me long to adapt to it and I feel it is more than worth and inconvenience given the additional safety. - Van
The waist band sits a little high to hold hip protection IMO. The KR3 comes with some protectors that cover the kidney area. This is another excellent piece of protection from Alpinestars. - Van
Got mine from you last week and wore it all weekend racing minis. Barely noticed it was there when wearing it and could feel the air moving through the armor even at kart track speeds on a Grom. Should be great when it's hot down here in Texas this summer. Thanks for the great review and support.
Sorry, forgot to come back and answer... Per the chart and waist size I was a Large but I decided to step up to XL so it wouldn't be TOO snug. However after wearing it I probably could have stayed with Large as the material is very stretchy. Overall I like it. It's getting up around 100 degrees at home and the garment doesn't appear to be adding any heat over a regular back protector and chest armor since all the armor is so open structure. However I HAVE tried to go out on track without zipping up my leathers as this vest feels like my suit is already zipped up!
Interesting review, nice protection vest. The back protector provides full-length protection coverage. Chest Protector level 2 is a very good thing. But what size to choose - 172cm, 71kg, chest 101cm, waist 91cm. I wear jackets size 50. Here the sizes are slightly different if you could help me out with sizing? Thank you for your help.
Did you buy it? If yes, what size and how is it for your body? 5'7'', 157 lbs, 35 inch waist. I want it to cover my lumbar area in lower back. Open to hear any recommandation.
Could this be worn above clothing (not under a jacket or anything)? Or would that risk the fabric tearing in case of a slide? I’m trying to find something with chest protection but for a busty woman… can’t seem to find anything that is comfortable in the front.
You could wear it over but as you noted the fabric is not designed to slide on the ground like a jacket. As for the armor in the chest your best option is to use an Alpinestars jacket with the chest inserts and zip up. - Van
Just got my first suit. went with a size 54 as 52 felt a bit too tight for comfort. The 54 feels great and give my thighs more space. Upper body feels great ...until i put on a back protector and with the aero hump on the back plus the back protector right under it it gets quite uncomfortable. Every where on the suit feels like the perfect size until i get that back protector on. Any recommendations? Any bigger of a suit it seems like other regions will be too big.
If the suit is perfect before the back protector I would expect the suit to stretch enough to get you the same feel with the back protector after it breaks in. - Van
Great video, I'm very much interested in this vest. I'm 182 cm and around 90 kg, what size would you recommend for me? And do you think it will fit under my one piece leather suit, which fits quiet tight on my chest and shoulders since I'm lifting weights?
I have not seen the Dainese piece but can tell you this is low profile for a Level 2 certified piece. Max tried a couple of jackets on with this and it had very little influence on how the jacket fit him. - Van
There are three shell sizes: X-Small uses the X-Small shell, Small & Medium use the S/MED shell and have different length waist belts and the Large & X-Large use the L/XL shell while having different length waist belts as found with the Small & Medium. Click on this link and open the size chart for more: www.sportbiketrackgear.com/alpinestars-nucleon-kr-r-cell-back-protector/
For track days, NUCLEON KR-3 or NUCLEON FLEX PRO? I currently own an Alpinestars NUCLEON KR-3, but I've put on some weight recently and it's becoming more challenging to wear my 1 pc leather jacket. The snug leather jacket pulls up the back protector, making it difficult to keep it in the right position, even getting close to touching the base of my neck. Should I switch to NUCLEON FLEX PRO?
Both are good products that offer plenty of protection. This one uses all of the latest armor tech Astars is using and would be the one I would go with. - Van
5'7'', 157 lbs, 35 inch waist. I want it to cover my lumbar area in lower back. Open to hear any recommandation. in centimetres: 170cm, 70 kg, 90cm waist.
hello? I am wearing Alpinestars Track Vest 2 size M. I want to wear it tight like the person in the video I would like to order a Nucleon Flex Pro. Can I order in size S? same as track vest 2 size i will order size S for tightness please advise
I am Korean and my body size is 175 cm tall and 79 kg in weight. alpinestar suit size 52 alpinestar jacket size L This is a body type in which the upper body has been developed by weight training for a long time.
Hi Brian & Max, I'm a tall skinny shape I wear a Laguna seca size 92. chest 84, waist 75, which calls for XS. But I'm also 182cm in height...do you think the XS will be too short for my back and should go for a small instead? thank you
@@sportbiketrackgear Yeah, ur right. I called Alpinestars CS, the lady was really nice. So XS and S share the same shell, and M use a larger one. back plate dimension as follow XS/S: 15.5" long by 9" wide. M: 17.5" - 9.75" . Hope it will help other potential buyers.
@@papercut1987 5'7'', 157 lbs, 35 inch waist. I want it to cover my lumbar area in lower back. Open to hear any recommandation. @sportbiketrackgear another comment, you said S and M has same shell size, which one is exact right?
Do you know Large's measures? I'm between M and L. I'm 170cm, chest 100, waist 90. I want full back protector as lower back and upper back both. @@papercut1987
@@Canpwr after trying nucleon flex at a local store I ended up purchasing the Kr-1 + kr-c. Nucleon Flex's sizing wasn't a good fit for my body type. kr1+c offered the chest tightening that I needed. I'd say don't worry about the back plate length, go with the chest size, it's more important to have the back and chest plate fit to your body.
![[LIVE] : ONE ลุมพินี 78 | คู่เอก "ปกรณ์ vs ฟาบิโอ"](http://i.ytimg.com/vi/LSOmgl0Th2c/mqdefault.jpg)
This looks like a decent option slotted between just a jacket and going with an airbag system. Plus it can solve the issue of back protectors each manufacturer leaves out from their jackets.
They did an excellent job with this vest. You could use this on the track or the street for sure. - Van
This looks like a great option. I wish airbag options were this slim, but maybe someday. My Tech Air 5 vest is great, but just a tad bulky and heavy.
The airbags do add some bulk for sure. It did not take me long to adapt to it and I feel it is more than worth and inconvenience given the additional safety. - Van
Bought that today - I am excited! Thanks for your vid 👍🏼 Greetz from Germany
You are welcome and thank you for watching! - Van
Those waist bands seem able to hold soft hip protectors from any brand in place nicely, as the Alpine KR-3 for added protection.
The waist band sits a little high to hold hip protection IMO. The KR3 comes with some protectors that cover the kidney area. This is another excellent piece of protection from Alpinestars. - Van
Got mine from you last week and wore it all weekend racing minis. Barely noticed it was there when wearing it and could feel the air moving through the armor even at kart track speeds on a Grom. Should be great when it's hot down here in Texas this summer. Thanks for the great review and support.
You are welcome and thank you for your business! - Van
hi Sloan, how was its sizing and fit? did you choose by size chart? thanks
Sorry, forgot to come back and answer... Per the chart and waist size I was a Large but I decided to step up to XL so it wouldn't be TOO snug. However after wearing it I probably could have stayed with Large as the material is very stretchy. Overall I like it. It's getting up around 100 degrees at home and the garment doesn't appear to be adding any heat over a regular back protector and chest armor since all the armor is so open structure. However I HAVE tried to go out on track without zipping up my leathers as this vest feels like my suit is already zipped up!
Getting ready to pull the trigger on one of these... what size do you recommend... 5'7" 165 lbs size 32 waist
Looks like a very good evolution of the Alpinestars Track Vest 2. Too bad the belt isn't removable.
If you want to remove the belt you would need to cut it off. For many this would be a good option as long as the vest fits well enough. - Van
keeps everything in place, why would you want to jeopardize that ?
Awesome review, good back-and-forth. Can't wait to watch the races this year!
The current Alpinestars protection catalog is very strong. Max and I are blessed to be doing what we are doing. Thank you for watching! - Van
Interesting review, nice protection vest. The back protector provides full-length protection coverage. Chest Protector level 2 is a very good thing.
But what size to choose - 172cm, 71kg, chest 101cm, waist 91cm. I wear jackets size 50. Here the sizes are slightly different
if you could help me out with sizing? Thank you for your help.
You are pretty close to the same size as Max. He is wearing a size small in this video which is the size I would suggest for you. - Van
Did you buy it? If yes, what size and how is it for your body?
5'7'', 157 lbs, 35 inch waist. I want it to cover my lumbar area in lower back. Open to hear any recommandation.
Could this be worn above clothing (not under a jacket or anything)? Or would that risk the fabric tearing in case of a slide?
I’m trying to find something with chest protection but for a busty woman… can’t seem to find anything that is comfortable in the front.
You could wear it over but as you noted the fabric is not designed to slide on the ground like a jacket. As for the armor in the chest your best option is to use an Alpinestars jacket with the chest inserts and zip up. - Van
A couple minor brushes with the thing, I need to do way more to keep my chest and ribs protected.
This is an excellent option for both back and chest protection. - Van
Just got my first suit. went with a size 54 as 52 felt a bit too tight for comfort. The 54 feels great and give my thighs more space. Upper body feels great ...until i put on a back protector and with the aero hump on the back plus the back protector right under it it gets quite uncomfortable. Every where on the suit feels like the perfect size until i get that back protector on. Any recommendations? Any bigger of a suit it seems like other regions will be too big.
If the suit is perfect before the back protector I would expect the suit to stretch enough to get you the same feel with the back protector after it breaks in. - Van
@@sportbiketrackgear Alright! Thank you so much for your reply!
Great video, I'm very much interested in this vest. I'm 182 cm and around 90 kg, what size would you recommend for me? And do you think it will fit under my one piece leather suit, which fits quiet tight on my chest and shoulders since I'm lifting weights?
I would put you in a size large. - Van
im 180cm tall 75cm waist and 72kg what size should i get?
and can i wear this under an armor vest?
I would get a size large in this vest. This is an armored vest, not sure why you would wear an armored vest under another. - Van
Wondering how is back side thickness compared to Dainese version.
I have not seen the Dainese piece but can tell you this is low profile for a Level 2 certified piece. Max tried a couple of jackets on with this and it had very little influence on how the jacket fit him. - Van
@@sportbiketrackgear Van, thanks! Ordered SM just now.
Hi Van is the back protector one size no matter what size you choose? I’m 5’5 and wear a size large.
There are three shell sizes: X-Small uses the X-Small shell, Small & Medium use the S/MED shell and have different length waist belts and the Large & X-Large use the L/XL shell while having different length waist belts as found with the Small & Medium.
Click on this link and open the size chart for more: www.sportbiketrackgear.com/alpinestars-nucleon-kr-r-cell-back-protector/
@@sportbiketrackgearwhich ones has same shell, xs&s or s&m, you told both in comments brother
For track days, NUCLEON KR-3 or NUCLEON FLEX PRO? I currently own an Alpinestars NUCLEON KR-3, but I've put on some weight recently and it's becoming more challenging to wear my 1 pc leather jacket. The snug leather jacket pulls up the back protector, making it difficult to keep it in the right position, even getting close to touching the base of my neck. Should I switch to NUCLEON FLEX PRO?
Having the back protector attached to the vest does help to hold it in place better than shoulder straps for sure. - Van
Thanks for the review! Just wondering if you could help me out with sizing? 180cm 91 or so kg
32 waist 👍
I would put you in a size large in this vest. - Van
Thanks Van! 🤙
Is this a replacement for the Track Vest 2? If not which would you recommend?
Both are good products that offer plenty of protection. This one uses all of the latest armor tech Astars is using and would be the one I would go with. - Van
5'7'', 157 lbs, 35 inch waist. I want it to cover my lumbar area in lower back. Open to hear any recommandation.
in centimetres: 170cm, 70 kg, 90cm waist.
I would suggest a size medium for you. Should get you the fit an the coverage you need. - Van
Is there a Dainese back protector you really like for the track?
IMO Alpinestars has the best back protector lineup on the market today. - Van
Hi Van. What size would you wear under one piece leathers? I’m similar size to you
I would wear a size large under my leathers in this vest. - Van
Hi sir van my weight is 174 lbs and my height is 5 feet and 7inc can you help me on sizzing.
I would put you in a size large at your height and weight. - Van
Is this compatible with the Nucleon KR-TB Tailbone Protector?
No it is not compatible with this vest. - Van
Hi van im 5' 7 and 179 kilos im waring large jacket asian fit. What size can you recomend to me
If you weigh 394 lbs I am sorry to say there is not a size that will fit you. - Van
Im sory van im 79kilo not 179 sorry.
hello? I am wearing Alpinestars Track Vest 2 size M.
I want to wear it tight like the person in the video
I would like to order a Nucleon Flex Pro. Can I order in size S?
same as track vest 2 size i will order size S for tightness please advise
I am Korean and my body size is 175 cm tall and 79 kg in weight.
alpinestar suit size 52
alpinestar jacket size L
This is a body type in which the upper body has been developed by weight training for a long time.
I would go with the medium, the small will be too tight. - Van
Does it work for off-road?
You could use this for any activity where you are concerned about impacts to the chest and or back. - Van
Hi Brian & Max,
I'm a tall skinny shape I wear a Laguna seca size 92. chest 84, waist 75, which calls for XS. But I'm also 182cm in height...do you think the XS will be too short for my back and should go for a small instead?
thank you
I would go with the size chart on this one. The Small and X-Small will use the same size protector. - Van
@@sportbiketrackgear Yeah, ur right. I called Alpinestars CS, the lady was really nice. So XS and S share the same shell, and M use a larger one. back plate dimension as follow XS/S: 15.5" long by 9" wide. M: 17.5" - 9.75" . Hope it will help other potential buyers.
@@papercut1987
5'7'', 157 lbs, 35 inch waist. I want it to cover my lumbar area in lower back. Open to hear any recommandation.
@sportbiketrackgear another comment, you said S and M has same shell size, which one is exact right?
Do you know Large's measures?
I'm between M and L.
I'm 170cm, chest 100, waist 90. I want full back protector as lower back and upper back both. @@papercut1987
@@Canpwr after trying nucleon flex at a local store I ended up purchasing the Kr-1 + kr-c. Nucleon Flex's sizing wasn't a good fit for my body type. kr1+c offered the chest tightening that I needed.
I'd say don't worry about the back plate length, go with the chest size, it's more important to have the back and chest plate fit to your body.