Thank you for taking the time to contact Sears.
Unfortunately, as this duvet was manufactured in Canada where we do not use the tog rating system. This rating system is prevalent in Europe & North American vendors' have not adopted this mode of measurement. We rely on the oz weight and the fill power of the fill to categorize our duvets based on light warmth, all season & heavy weight.
Have a great day!
Date published: 2014-05-27