Threestyle, the fashion and lifestyle arm of Threepipe, will promote the Swedish sports fashion brand through sport-related product placement and tie-ins with sports personalities, teams and associations.
Bjorn Borg Underwear relaunched its underwear range for men and women in the UK last year and works with Surgery PR on all media relations.
It is currently sold in retailers including Selfridges, Harvey Nichols, ASOS and Urban Outfitters and is stocked in more than 80 stores nationwide.
Nick Crook, co-founder of Threestyle, will head up the account.