These standard size grey goose feather down pillows are designed to provide optimal comfort for a restful night's sleep. The filling weight is 39 OZ, consisting of 90% grey goose feather and 10% grey goose down. The filler is naturally captured, making the pillows moisture-absorbent, breathable, and fluffy. They are also designed to protect the cervical vertebra and improve sleep quality, suitable for use in all four seasons. The pillows are meticulously crafted with a 4-layer fabric construction, with both inner and outer layers made of polyester fabric. The outer layer is abrasion-resistant and wrinkle-free, dispersing moisture to keep the pillow dry, while the inner layer prevents feathers from poking through. These pillows are durable, cozy, and can be machine washed with care instructions provided for maintenance.