Pippa Middleton riding in Race Across America

Pippa Middleton—younger sister to Kate Middleton, the wife of Prince William, Duke of Cambridge—is part of an eight-person team competing in the Race Across America. The ultra-endurance event started this past week. Teams, such as Middleton’s Michael Matthews Foundation, began their 3,000 mile (4,800 km) trek on Saturday in Oceanside, Calif. The most recent time station data on the team is from Cortez, Colo. As of 10:54 a.m., Middleton’s team has covered 834.5 miles (1,342 km) in one day, 19 hours and nine minutes.

A recent article by British tabloid The Daily Mail focused on how Middleton would protect her famous behind from saddle sores.

However, in her figure hugging cycling shorts, 30-year-old Pippa’s most famous asset was fully on display and she opened up to The Mail On Sunday about how she will protect her pert posterior during the 3,000 mile bike ride across 12 American states in just eight days.

Pippa is the only woman in a team of eight and in an exclusive interview just before setting off, Pippa told The Mail on Sunday she had stocked up with special ‘chamois cream’.

‘I think every cyclist including me will be layering it on,’ she said. ‘Once we get going it’s non-stop, with very little sleep. It’s nerve-racking but exciting and all for a great cause.’

Chamois cream is usually a shea butter, aloe vera or olive oil-based emollient designed to prevent sweaty bottoms and inner thighs from being rubbed raw during hours in the saddle.

She had spent eight months preparing for RAAM.

Middleton’s team consists of her brother James, James Matthews, Adam Mackie, Ralph Firman, Justin Johanneson, Jons Barthodlson and Loïc  Lapèze. They are raising money for the British Heart Foundation (of which Pippa is an ambassador) and The Michael Matthews Foundation.

Current estimates have Middleton’s team arriving at the finish in Annapolis, Md., on June 21.