80% Polyester, 20% Coolmax Microfiber Imported FEATURES - Coolmax blend fabric that is moisture wicking for maximum sleep comfort with perfect solution for sleepers who have night sweats or temperature regulating problems. It is breathable and has quicker moisture evopration capacity and hence keeps the sleeper cooler and drier always FIT - With elastic all around, the deep pocket fitted sheet can be stretched to fit snugly with your mattress.Fits mattress up to 16" FABRICATION - Sleep Philosophy Smart Cool sheet sets are constructed with a proprietary blend of ultra-fine microfiber along with moisture absorbing Cool Max fabric. Cool Max pulls moisture away from the skin and spreads it across the fabric allowing for quicker evaporation PACKAGE INCLUDES AND MEASUREMENT -1 Flat Sheet: 108(W) inches x102(L) inches, 2 King Pillowcases: 20(W) inchesx40(L) inches each, 1 Fitted Sheet: 78(W) inches x80(L) inches+14 inches pocket depth EASY CARE - Machine washable and dries quick on tumble dry low