J. Jill 55 S Main St, Naperville, IL60540 J. Jill is a women's clothing store that caters to women in the 30s and older. The stores number one priority is for…More customers to feel comfortable and empowered in whatever they're wearing. This unique location on the main street promenade in down town Naperville only adds to the stores comfortable and stylish environment. J. Jill is also partnered with charity programs. You can drop off gently used J. Jill clothing items or accessories and receive a 10 percent discount on your purchase. Your used clothing will be delivered to homeless women in various locations.