Unique Sheen and LuxuriousThe silk fiber is a long smooth triangle; it can refract light at different angles. Thus the color of silk products can change as the angle of the light changes, which gives silk products unique sheen-shimmering appearances. The soft, smooth, and shimmering features give its luxurious appearance and feel, making silk the most beautiful fiber on the earth. Good for SkinThe smooth touch of silk reduces friction on the skin and minimizes sleep creases. On the other hand, thanks to a natural protein in silk, skin metabolism speed up. Besides, silk is known for its hypoallergenic properties. Thus it's the ideal choice for those with sensitive skin. Bring Quality SleepSilk can regulate temperature. Thus silk lets you warm and cozy in winter and keeps you comfortably cool in summer. You will always wallow in a fresh comfort throughout your sleep. In the meantime, silk contains 18 natural amino acids named 'the sleep factor.' Those trick the nervous system into a relaxing state that triggers your sleep mode.