Spanx: Get Moving Cropped Square Neck Shelf Tank in Fuchsia (51121R) Sams Club Best Offer of the Year is Here NOW! Get Your Membership for. Move with confidence in this vibrant fuchsia tank that's as fun as it is functional. The cropped square neckline flatters while the built in shelf bra provides support for your active lifestyle. Crafted by Spanx, this piece seamlessly transitions from gym sessions to casual outings, delivering the comfort and style you crave without compromising on performance.