Activewear shoppers ask two questions: how much does it cover, and how does it hold. Try-on answers the first properly. It cannot answer the second, and a page that implies otherwise is setting up a return.
What it shows
Coverage and cut on the shopper's own proportions — where a crop hem sits, how high the rise goes, how much back a strap configuration leaves. For a category sold in tight tolerances of coverage, that is the useful half of the question.
What it cannot show
Compression, support and hold are mechanical properties that appear under movement. The output is a single still image generated from a still photograph. It has no information about how a fabric behaves when someone runs in it, and nothing in the generation is measuring tension.
Keep the technical copy doing the technical work: fabric weight, support level, intended activity. Try-on is the visual answer sitting next to it, not a replacement for it.
Sets and layering
Activewear sells in sets, and sets are a good fit for multi-garment try-on: up to six pieces in one generation for one credit. A shopper seeing the top and the legging together is looking at the basket you actually want.