Always read and follow the care instructions and any warnings on the garment label. And, follow the General Rules for washable fabric stain removal.
Use a soft eraser to remove what excess lead you can. But, be careful so you do not damage or stretch the fabric.
Spray the stain with a pretreatment product.
Rub the area with a heavy-duty liquid detergent. Rinse and launder.
There are also commericial pencil mark removers available in some quilt supply stores.
ZYIA - Item 883 - Navy Pocket Light N Tight Hi-Rise Capri 20
Say hello to the versatile capri edition our most popular legging. The high-performance design offers a firm compression that feels oh-so-supportive whether you plan to run a marathon or just run the day. The fitted design and high-quality fabric contours to your shape, & stay in place for a frictionless, effortlessly flattering look.
ZYIA - Item 916 - Black Twist Slouch Tank
Elegance meets comfort in this graceful, slouchy tank with a twisted surprise. You'll never tire of the velvety soft feel of its fabric or the flirty design of its open back. For hot and humid workouts—or late nights on the dance floor—nothing beats the effortless feel of this highly breathable top.