Sporty Pippa Middleton was spotted out jogging today for the second time this week. Despite temperatures in London reaching a toasty 23 degrees, the 31-year-old was seen pounding the pavement on a long run around the city. A fitness fanatic, the younger sister of the Duchess of Cambridge is currently preparing to take part in a 54-mile charity bike ride from London to Brighton  in June, to raise money for the British Heart Foundation. Scroll down for video . Sporty Pippa Middleton was spotted out jogging in London today, for the second time this week. The 31-year-old is preparing to take part in a 54-mile cycle from London to Brighton to raise money for charity . Adidas climachill shorts . Invest in Pippa's style here . Visit site . She looks good on the red carpet, at Wimbledon and out shopping and it seems Pippa Middleton looks great even when she's out running! She clearly wanted to make the most of the sunshine out in London today whilst tying in keeping fit, no doubt in a bid to help her charity bike ride she's taking on this summer. Pippa showed off her toned legs in her tiny shorties by Adidas which are up for grabs to buy (right) - the perfect running accomplice. Complete the look with her coral vest by Sweaty Betty (below) if you really want to give yourself the royal treatment. We've highlighted a whole host of other pairs of blue shorts below to help you nail Pippa's sporting style. Wearing shorts on your next run is a sure-fire way to get those pins bronzed, so why not take the plunge with one of our bargain picks now? All that running in your new shorties might give you a Pippa style derrière too - what's not to love!? Sweaty Betty anusara yoga vest . Visit site . Adidas 2in1 shorts at Sports Direct (now £17.99) Visit site . Forever21 colorblock woven running shorts . Visit site . Adidas linear short at Sports Direct (now £17.99) Visit site . New Balance 5 inch shorts at Sports Direct (now £9) Visit site . Keeping cool in the sunshine, Pippa teamed her bright coral vest with coordinating Adidas shorts. Ever the style maven, even the pink laces in her running shoes matched the Nike tick on her sports cap, while the lead on her earphones appeared to be a part of the colour coordinated ensemble too. An ambassador for the British Heart Foundation, Pippa appears to be training hard to maintain her fitness levels for the London to Brighton cycle. Though having completed a 3,000-mile bicycle ride across the USA last year, not to mention a cross-country ski marathon and a four-mile swimming race in a Turkish tidal shipping strait, it's likely she's already much fitter than most. Ever the style maven, even the pink laces in her running shoes matched the Nike tick on her sports cap, while the lead on her earphones appeared to be a part of the colour coordinated ensemble too . A keen athlete, Pippa, who won a sports scholarship to Marlborough College, has previously spoken about how she likes to stay strong and healthy with plenty of exercise and protein-rich diet. Ahead of her swim in Istanbul last summer, the columnist said, 'To maintain energy I try to eat more protein, particularly fish or chicken. 'A lot of people swear by carb-loading in the run-up to an event but it doesn't really work for me, so I just up my protein intake.' Pippa Middleton was seen enjoying an early evening run in a London park earlier this week, stopping along her route to chat to a friendly fellow jogger . Pippa has also revealed that she prefers to stick to ‘wholesome carbs’ such as brown rice, lentils and quinoa, to balance her increased protein intake. On the morning of big events, she tucks into a bowl of porridge with honey, banana and nuts to provide her body with plenty of fuel. A big fan of the healthy lifestyle, Pippa has also revealed that playing tennis and taking Pilates classes helps her to keep in shape. Miss Middleton has previously revealed how she sticks to 'wholesome carbs' and protein such as chicken and fish when preparing for sporting events . A columnist for Waitrose magazine and contributing editor to Vanity Fair, Pippa is currently bouncing back after it emerged last month that a planned deal for her to join US television channel NBC as a special correspondent had gone sour. Not appearing to be short of projects however, she's reportedly now teaming up with an old pal, designer Tabitha Webb, to bring out a ‘Pippa Dress’ in time for a charity ball she will host in November. Her limited company, PXM Enterprises, made a profit of more than £200,000 in 2014. Pippa has previously completed a 3,000-mile race across the USA to raise money for charity (pictured), plus a cross-country ski marathon and a four-mile swimming race in a Turkish tidal shipping strait .
Pippa was seen pounding the pavement on a long run in the London heat .
The 31-year-old is currently in training ahead of a 54-mile charity bike ride .
She kept cool in coordinating orange vest and Adidas shorts .