Does barter content have to be labelled as advertising?

Yes. A product the athlete receives for free counts as a benefit — and the moment a benefit sits behind a post, that post is advertising. The value is irrelevant: whether it's €20 or €200, the rule looks at whether a benefit exists, not at the amount.

In practice that calls for a clear label in the language of the audience — spelled out ("Reclame" or "Advertentie" in Dutch, "Publicité" in French), up front and legible, not buried under a row of hashtags. A platform tag like "paid partnership" on its own isn't enough, and the brand has to be identifiable (with us, via @brand and #brandsquad). Important for you: under the Belgian Code of Economic Law — which applies nationwide — the advertiser is co-responsible for getting its collaborations labelled correctly. Advertising that isn't recognisable as advertising counts as a misleading commercial practice.

We take that off your plate. The labelling obligation is built into the terms every sportfluencer accepts for a collab, so you don't have to police it post by post. Transparency doesn't weaken the content either: an athlete who shows your brand and is open about it stays more credible than an ad dressed up as a chance opinion.