If you get the right fit, these stay on snugly and keep you warm. I’ve been happy with them, they’re super compact and come with their own bag for storage.The only issue I have is…, if i wear glasses and also wear a face mask, these covers might struggle to stay in place as there is a lot going on around my ears and the bags can’t get a snug fit. Just glasses is okay but adding a face mask with glasses makes it a bit challenging, the covers could fall off.One other trick I learnt while putting tSee full review