The agency has been briefed to help grow Wonderbra's digital following in the UK ahead of a new brand campaign planned for later this year. The team will communicate the depth of its product offering and increase relevance amongst its target audience.

Unity will also use social media to promote Wonderbra's new bra ranges, product innovations and the new face of the brand, Adriana Cernanova. The team also aims to increase traffic to Wonderbra's new UK e-commerce website which launched in April.

Nik Done, co-founder of Unity, will lead the account.

Julia Nolan, marketing director at Wonderbra UK, said: "Unity demonstrated that its strong creative ideas were backed up with solid strategic insight into our target audience and how they interact with social media. We're really excited to be working with them to grow our channels and increase engagement."

Nik said: "We're thrilled to be working with Wonderbra, which is such an iconic brand for many. Everyone remembers the 'Hello Boys!' campaign and we hope that this new chapter in the brand's story will help reposition it and generate real brand love in 2012."

Iris PR will continue to be Wonderbra's PR agency in the UK.