To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I bought the Strato Hi-Viz Vent but I received the Strato Vent (not high viz). The hi-viz has glow-in-the dark and reflector parts for visibility. It is also reflective green-ish in colour for which I had bought matching hard-hat earmuffs. I was disappointed the wrong product arrived although the seller was responsive and refunded my payment. Also I had bought two attachments for it which did not seem to be OEM. The vizen mesh and the vizir shadow looked low-quality while the mesh would not properly connect to the helmet. The overall experience did not feel like genuine PETZL and that is why I requested to return them.