There is a definte ridged feel to it and its firmer than a dorma 7cm memory foam topper I tried previously. I've been using it a week now and it's a big improvement to the firm cheap mattress I have. Price was relatively good and I expect this to last a while without fade or loss of shape. Hard to tell how breathable it is as the weather is cold but I can imagine the fact that it's not just a lump of foam, but instead repeated section's shaped into foam springs, that it would be cool in summer.