Does denim look lyocell shrink/fade/soften in the wash?

[Lambzig]

I have had a lovely bargainous lyocell denim dress delivered from H&M today. It's a bit rumpled, creased and stiff. Just wondering whether to iron it or give it a wash.

I used to wear lyocell jeans back in, about, 2006. It's a short fibred wood composite (aka the MDF of the fabric world), so it's really just like viscose. Which means it hangs nicely, but it will lose its shape and become weak and floppy quickly. Probably not too bad as a shirt, but pretty rubbish as jeans. H&M might have starched it, so that could explain the stiffness. Why don't you iron it (delicate setting, then hotter if need be), then see what you think? I'd expect it would be relatively crisp post wash and iron, but start to crease and go floppy quickly. Starch can help w that, though.

Here's the Wiki entry for lyocell, although I'm surprised to read it says like cotton, linen and viscose ... resistant to wrinkles" since that's the opposite of my experience [shrugs] en.m.wikipedia.org/wiki/Lyocell

I have some Generic jeans which are a Tencel/cotton mix they are really soft and wash well with no creases. They don't bag and fit really well. I love them.

They are Genetic not Generic........