This is the one I bought.Link?
Member's Mark 20" Protective Safety Box (Black) https://www.amazon.com/dp/B073K3NQNV/ref=cm_sw_r_cp_apa_dq4.zbW2VADVE
You do not want the third layer to be pick and pluck or else the racks will be sitting on plastic.
Edit: Also just checked mine and only one layer in mine was pick and pluck. No big deal though, I get over 1000 chips in mine.
Mine has three layers, I was going to keep the bottom solid layer and pick the top two so that my racks are surrounded by foam on all sides. As it is now I'm trying going to fit 1200 chips in it. It should be fine because the stacked racks sitting on the top of the foam layer are tall enough that the egg foam up top will hold the chips in. But the second layer of racks is relying on the top down force to keep them in place, I'd rather they were also surrounded by foam on all sides...I think.