The Purple Pillow With Booster offers fully customizable comfort with patented GelFlex� Grid technology. The 3" hyper-elastic polymer grid instantly adapts to your shape for firm, no-pressure support that cradles your head and neck. The included booster layers let you adjust height for a personalized fit. A moisture-wicking bamboo-blend mesh cover promotes airflow and keeps the pillow fresh. Ideal for back and side sleepers seeking cooling comfort and firm support. Comes with free shipping and a low price guarantee at Slumberland.