Gelled Microfiber offers the benefits and feel of down, however skipping out on the smell, pokiness of feathers and allergenic tendencies. The ZZQQ00GM silicone zed tiny microfibers combine to create a consistent, resilient and traditional filled pillow feel. Unlike down, the filling will not clump and doesn't flatten and go limp over time. The contents are naturally antimicrobial and resistant to dust mites and allergens. The breathable construction will maintain a comfortable sleeping temperature. The traditional size and shape fits pillowcases and unlike some specialty pillows, ties in well with bedding decor. This pillow features a super soft microfiber cover and boasts a 3-year warranty. King size pillow includes: one 35" x 16" pillow; Queen size pillow includes: one 29" x 16" pillow; Standard size pillow includes: one 25" x 16" pillow.