Viscose jumper from stitch fix - will it shrink?

[Givemestrengthorgin]

I got a lovely jumper in my first stitch fix package. I love the style but it's viscose and says hand wash only. That's never going to happen...it will be chucked in a 30 degree wash when needed. Is that likely to ruin it or cause it to shrink? If so, I'll just return it.

I wash handwash items on a 20 degree or cold water short cycle with the lowest spin level. No problems so far