this topper shape referred to as “egg crate” or “convoluted design” – the convoluted design means the memory foam has built-in peak-and-valley airflow channels that enhance breathability, plus cradles you gently (the same way an egg sits comfortably in an egg carton.) Designed with the ultimate comfort in mind, this 4” topper is constructed of premium memory foam that conforms to your unique shape for comfortable support, with a thicker depth for even more cushioning. - Open Box Item, (1pc: King Size Memory Foam Mattress Topper ) *Item is in Box (Fully Assembled)
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