The little tags on back protectors and knee armour carry codes like “CE” and level markings. They are the only objective signal you get about what the foam will do in a crash — so it pays to read them the way you read a helmet standard.
What the letters mean
CE marking indicates conformity with a European standard; for motorcyclists’ protective clothing and impact protectors there is a dedicated European standard family, with level 1 and level 2 classifications for impact protectors — level 2 transmits less force to the body. Newer garment-level standards also grade whole jackets and trousers for abrasion and impact performance in classes A to AAA. Two honest caveats: Vietnam market gear often carries claimed CE marks that are untested fakes, and a certification claim is only as good as the tag’s honesty — the counterfeit warning applies exactly as it does for spare parts in genuine-vs-fake-parts-motorbike-vietnam.
Level 1 or level 2?
Level 1 armour is thinner, lighter, cooler and fine for most urban riding. Level 2 is thicker, hotter, and what you want for higher-speed riding — touring and mountain trips. In Hanoi heat, a level 1 protector you actually wear daily beats a level 2 slab you leave at home.
Checking armour in the shop
Squeeze it: real impact foam feels dense and springs back slowly; cheap packing foam feels light and springs back instantly, and it is used in the fake protectors sewn into bargain jackets. Look for the certification tag stitched into the pocket or printed on the protector, and check the protector is removable — armour wears out from sweat and compression years before the garment does. Where armour sits under everyday clothes, the placement rules are in body-armour-motorbike-riders.
Integration
Armour lives in garments: check that a jacket’s back panel actually accepts a back protector insert (many budget jackets have the pocket but ship without the insert), and that the elbow and shoulder pockets hold the armour in place on your body — the fit logic is in riding-jacket-vietnam-climate, and the budget sequencing in riding-gear-budget-priority-vietnam.