Experience with sonderhaus?

Does anyone have experience or know much about the brand sonderhaus and its practices?

They claim the clothing is sustainably and ethically produced in various countries (i.e. china, india, portugal) depending on the product... they also mention something called "Calico" described as a third party partner who ensures standards of ethics and sustainability. I cannot find anything online about Calico, has anyone head of Calico?

https://sonder.haus/pages/sustainability

They have cool clothes at decent prices it almost seems a little too good to be true for ethical and sustainable fashion...