The Boswell by Derek Lam 10 Crosby is a light, flowy pleated short designed for comfort, featuring a back elastic waistband, adjustable side tabs, side and back pockets. The Boswell by Derek Lam 10 Crosby is a light, flowy pleated short designed for comfort, featuring a back elastic waistband, adjustable side tabs, side and back pockets. Named after the original NYC flagship store address, Derek Lam launched Derek Lam 10 Crosby in 2011 to elevate and transform everyday style through fit, form, fabric, color, and attitude.