Rihanna plays beach volleyball in her skimpy bikini... and a stout pair of work boots

Even while relaxing on the beach, Rihanna's unique sense of style shines through.

The singer stripped off for a game of volleyball yesterday, but teamed her skimpy swimwear with a stout pair of work boots.

The black leather footwear toughened up her white string bikini, which she wore with a sweater tied around her waist.

Action girl: Rihanna gets ready to play volleyball as she and her bandmates relax in a break from her tour at Cape Sounio Beach near Athens

Rihanna's roadies, dancers and touring team joined the 22-year-old for the game in the picturesque setting of Cape Sounio beach.

The American singer was taking a break from her gruelling world tour, after performing in Athens.

Her boots are getting a lot of use, despite the warm weather in Greece.

Staying in shape: The singer's busy dance routines have kept her body slender

Aren't you hot? Despite the warm weather, Rihanna kept her work boots on

Rihanna wore them again as she arrived in Istanbul yesterday, ahead of her performance.

This time she teamed the boots with a ruffled chiffon skirt and pistol motif T-shirt for a day-time look, then a hoodie and leggings for a shopping trip.

Rihanna is currently on the road with her Last Girl On Earth tour - which began three weeks ago.

After Turkey she heads to Spain to perform in Madrid.

Favourite footwear: Rihanna wears her all purpose boots with every outfit, teaming them with leggings and a sweater for a shopping trip in Istanbul yesterday, then stepping out in a fancy skirt

Earlier this week the Umbrella singer performed in Tel Aviv.

The RnB beauty, a Barbados native, spent two days before her concert sightseeing in the Holy City of Jerusalem.

She visited The Church Of The Holy Sepulchre, said to be the site of Jesus Christ's tomb, and the Western Wall, one of the Jewish faith's most religious sites.

Hip hop artist Eminem has revealed that he has just collaborated with Rihanna on a new track.

'I felt only she could pull it off,' he said.

Putting on a show: Rihanna performed at the Kurucesme Club arena in Istanbul last night