Courtesy of Net-a-porter.com
The hollows of our cheeks aren't the only places that succumb to gravity as we age: Our bottoms tend to be less buoyant too. To give them a lift, Susie Crippen of J Brand recommends checking the label of every pair of jeans before buying. "Make sure they have at least 2 percent stretch, like Lycra," she says. "Pants with more than 98 percent cotton can stretch out as soon as you wear them and give no support."