Glacier Collection has a single chamber that ensures consistent comfort throughout and has a different look. It has a smooth, snow white colored cover with eye catching rose gold stitching and an instant cooling feel. Available in four heights, also called sizes, the lowest height pillow includes one air vent and a mesh patch on top and bottom while the other three heights include 10 air vents and mesh on all sides, giving the Glacier pillow cross ventilation for maximum breathability. Glacier’s zip off removable and washable cover creates a clean and healthy sleep environment. Glacier has BEDGEAR’s patented Ver Tex instant cooling cover to reduce sweat and heat buildup.