Snuggledown Hungarian Goose Down 13.5 Tog (9.0 + 4.5 Tog) King Size All Seasons Duvet With 2 Pillows. Luxuriously soft and lofty with a natural drape, this Snuggledown Sumptuous Hungarian Goose Down 13.5 Tog All Seasons Duvet is filled with an indulgent blend of 80% Hungarian goose down and 20% Hungarian goose feather.