Thankfully he'll be wearing a parachute. And this rather fetching jumpsuit.
He's going skydiving this Friday to raise money for his two lovely nieces (pictured above), Ellie (7) and Lily (3), who both suffer from unrelated heart conditions. It's likely they'll both need to have heart surgery before they reach the age of 10, so they've been advised to get a defribrillator, which Tim's hoping to pay for with the money raised from his skydive. Best of luck Tim, although, with a jumpsuit as shiny as that, we're not sure you'll need it.