Warm and a good fit." There's no sign more telling of sweatpants' staggering rise to popularity than the fact that a stalwart of sturdy Americana now makes one of the best pairs around.

Fortunately, Walmart has slashed the price of the Hanes Ultimate Sweatpants by 42%, and shoppers say they're a "must-have." ...

Find both form and function with these top sweatpants picks.