Alpinestars A-1 Chest Protector : Review & Best Prices


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If you’re looking for some roost protection when you ride, the A-1 roost guard from Alpinestars is a good option. It’s ideal for the motocross or off-road rider that wants some level of chest protection but might not be comfortable wearing a full-size protector. It has a sleek design, unlike other bulkier models, so a jersey can easily fit over it.


The front panel on the A-1 roost guard is CE certified to EN 14021 standards. It’s made out of a poly-material blend that was chosen for its durability and lightness. While the back panel is also made out of this same material, it’s not CE certified. Throughout both the front and back sections is a bio-foam padding. This padding is soft and breathable, put in place to help with comfort. Perforations on the shell are there for additional ventilation.


To get the chest protector to fit snugly, you can use the adjustable kidney strap enclosure. The buckle can be quickly secured so you can hit the motocross track or off-road trails as soon as possible. The shoulder pads are adjustable as well, and you can even remove them if they’re not needed. What sets the A-1 apart from some others is the removable back plate. You can take off the whole rear portion if you want, or you can remove the upper back plate to better accommodate a neck brace. The roost guard comes in two sizes, M/L and XL/XXL.



• Shoulder and elbow adjustment straps for personal fitment.

• Lateral adjustment straps to tighten the back protector towards the chest shell for safe and secure fit.

• Kidney belt to tighten the back protector to the body.

• New technical elastane main construction is highly breathable and retains shape.

• Premium, auto-lock YKK zipper for main frontal closure.

• Shoulder reinforcement for YNS attachment and position stability of protector.

• Removable upper back panel for YOUTH NECK SUPPORT compatibility.




• New lightweight protection jacket with high adjustability and maximum breathability.

• Back protector developed in two waist to-shoulder dimensions in order to cover all the KIDS/YOUTH body sizes from 6–10 and from 10-14 years.

• All shells are constructed from a high performance polymeric material blend for optimized flexibility and excellent weight-saving properties.

• All shells are highly perforated for maximum breathability and air ventilation.

• Single injected shells constructed with a back integrated grid structure which absorbs and dissipates impact forces.

• Shells are vented and channeled to improve airflow and prevent heat buildup. Ergonomic protection shell contour following the natural curve of the back ensuring optimum fit while riding. Plates lock to prevent overextension of the back.

• Soft touch YNS puller for convenient and safe engagement of the YNS.



8.7 Total Score
Light-Weight, Breathable Chest Protection

With the A-1 roost guard, Alpinestars has added a high-quality chest protector to their growing line of off-road / mx protection gear . It meets high safety standards, feels lightweight, and allows for plenty of mobility and airflow, either under or over the jersey.

Build Quality
Fit / Adjustability
  • The roost guard is customizable to your preferences. Set it up with either a front and back protector or just a chest protector.
  • It's comfortable to wear. With interior padding and adjustable straps, you can get the right fit. It's also designed to keep you cool.
  • It doesn't get in the way. It has a slim profile, so you still have full range of motion while wearing it.
  • - Smallish coverage area
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Alpinestars A-1 Roost Guard
Alpinestars A-1 Roost Guard
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