ASI’s 2026 Ad Impressions Study provided one of our most comprehensive looks at the value, effectiveness and impact of promotional products, particularly when it comes to how branded products influence buying decisions with a low cost-per-impression (CPI). Now, we’re spotlighting stats around individual product categories, research questions and specific international markets worth taking a second look at.

CPI is one of the key metrics for measuring the return on investment for various forms of advertising – including promo products. ASI Research calculated an average number of impressions for each promotional product category by multiplying the average length of time consumers keep a given product by the frequency of its usage and how many people they come in contact with while using it.

Of course, the longer a product is kept, the greater the number of impressions it is likely to accumulate over its lifespan. And that number of impressions can bring down the average CPI for a promotional product – even a more expensive one – to just fractions of a cent.

The outerwear category is an excellent example of that phenomenon. Despite products like fleece, jackets or sweatshirts typically running more expensive than the average T-shirt or baseball cap, their CPIs are comparable at less than half a cent per impression because outerwear, on average, garners about 9,000 impressions over its lifespan.

Read and download the full 2026 Ad Impressions report here.

Click here for a pdf of this infographic.