From the Hybrid Pillow Collection. Marshmallowy soft, unique foam and fibre design. Innovative design with two fills in one, you get the moldable, almost liquid-like feel of fibre and the reliable consistency of Casper's ultra-soft foam. It’s the best of both worlds. Marshmallowy feel: three-layer design and a plush knit outer shell create an ultra-comfy, squishable feel while still giving your neck the support it needs. Stays supportive: the foam layer on the outside ensures no clumping or flattening over time. You don’t even need to fluff it! Your pillow stays supremely supportive night after night.