V-neck T-shirt with Mio Akiyama from the anime K-on! 

Installation:
just drop that .package into your mod folder, fam

It's a re-skin of the v-neck with the little alien invader on it. This means, you won't see it as an independent item in the list but just go to said alien T-shirt and open the little colour change swatch and choose the purple-ish one