Lady razor on the go - Plastic or sustainable?

As I started preparing myself and my bags for a 3-day-weekend in Berlin, I stumbled across lady razors in travel format. Really easy to take with you, in your carry-on baggage, to the gym, etc.

The one I ended up buying this morning is from Gilette, Venus: On the go.

Then, I thought... Ay so much plastic, is there no better sustainable alternative? So I searched the internet and come across some bloggers writing about sustainable razors. there are many kinds, I suggest you check them out!

I think I'll get one myself for home use. :)