If your go-to joggers and a pair of painter’s pants had a baby, it’d probably look something like Birder. The cool-girl silhouette—done in army-green cotton with silky olive paneling—is equipped with an elasticized waistband (comfort is key), patch pockets (the bigger, the better, in our opinion), and tiny button tabs at the ankle. Pair it with everything from sleek bodysuits to billowy blouses.

• 100% cotton; Contrast: 100% viscose