When she was Queen of Wakanda, I always thought that would be a cool gift from T'Challa. Something like unstable molecule vibranium cloth that she could summon at will from her wedding ring to cover her body as she deemed necessary. Storm's greatest weakness as a combatant has always been her baseline human durability. Can you imagine a physically nigh-invulnerable Storm? Of course, if she really wanted to, she could pull off the feat herself by surrounding herself with extremely pressurized air/manipulating the electrostatic cohesion of her own molecules, but still, it would have been a nice gesture on T'Challa's part.