My style is quite laidback: Rafael Nadal

He's agile on the tennis court, but when it comes to his personal style, Spanish tennis icon says he likes it to be laidback.

"When I'm not on the tennis court, my style is quite laidback - I like comfortable, casual pieces for daytime and classic, sophisticated styles for evenings and special occasions," Nadal said in a question-and-answer routine as he celebrated the launch of brand Tommy Hilfiger's new underwear collection 'TH Bold', read a statement.

Nadal unveiled the Fall 2015 ad campaign featuring himself last month, and said the shoot of the campaign made him feel "at home".

"We shot the campaign imagery in Mallorca, Spain, so I felt right at home. The photoshoot took place at these big old warehouses that had been transformed into an amazing set - the perfect blend of Tommy and tennis. The energy was fantastic," he added.

Nadal's ad is the official launch of his ambassadorship for Tommy Hilfiger Underwear and Tailored collection.

"Working with Tommy is a fantastic experience - he's always got a smile on his face and a positive attitude. He's a very special person with great taste and an eye for design. He always knows what looks best and is good at giving style advice," Nadal said.

Appreciating the designer's work, the 14-time Grand Slam champion said: "From underwear to suiting, Tommy's designs are top quality and always show a strong attention to detail and comfort."

What's a styling advice he would give to men?

"Invest in quality; a classic tailored suit will last a lifetime and carry you a long way. Make sure the fit is impeccable - it's worth it to visit a tailor and have your suit altered to fit," said Nadal who believes that a tailored suit and a fitted shirt are wardrobe essentials.