Eiderdown is the warmest in the world

Of all the different varieties of duck or goose down, there is nothing that even approaches the warmth, durability and breathability of eiderdown.


Its unique high-density and cling, means it insulates at a much higher rate, surpassing its 700 fill power. In a puffer coat, down that holds together at all times will evenly fill the entire channels without leaving spaces through which heat can escape.

Higher Loft

Eiderdown has extraordinary elasticity and resilience making it incredibly durable. Eiderdown will resist the test of time. Containing no feather, it can be compressed repetitively and still recover its initial volume, meaning it never loses its lofting capacity.

Advanced Breathability

Eiderdown has incredible breathability, with an insulating capacity so advanced that it adjusts to your body’s temperature. Marvellously well adapted for high-end outerwear, eiderdown breathes, letting body moisture escape.

Be Protected

Synthetics vs Down

Down provides approximately three times the warmth per ounce compared to even the best synthetics. Ounce for ounce, down is the warmest insulating material available and eiderdown has properties superior to goose down, wool, cotton or synthetic fills.

Genuine eiderdown has durability unsurpassed by any other type of down and to which no synthetic material can even come close.

As all by-products of the processing are biodegradable and the product itself is naturally occurring, the carbon footprint difference between synthetics and down is astonishing.

from the nests
of wild migrating birds

Olmsted's eiderdown is hand-gathered by Societé Duvetnor, on the protected islands of the St. Lawrence Estuary in Québec.

While having a significantly lower carbon footprint than synthetics and other downs, this genuine Canadian eiderdown literally contributes to the protection of biodiversity.

In Québec, the sustainable harvest of eiderdown has allowed the non-for-profit Societé Duvetnor to purchase, protect and enhance several islands of the Lower St. Lawrence.  

This method also yields detailed scientific information about the status of the population that is used by biologists to manage the species and its habitat.