If you recall, Rin mentions that Saber's casual clothes (the white shirt and whatnot) scatter whenever she transforms into her armor. Though, if they just scattered, wouldn't it be easier just to find them and take them with her instead of Rin providing Saber with a new pair each time? Even if they scattered relatively far, Rin would eventually have no more pairs to give, heck she even says that when giving Saber a new pair. I guess an alternative would be for Shirou to buy her new clothes, but if the clothes can be found easier, why not grab them? Can someone explain this to me? Thanks in advance.