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1. Fabric: 20# 1.8cm cotton chemical fabric: wear and tear resistance, not easy to wrinkle, extensibility to wear, clean and easy to care for a long time to maintain bright color.

2. Filling layer: 1.8cm cotton + double-layer PK (500g + 800g) Cool and breathable, quiet and silent, long-lasting elasticity, so that the body and mind can be relaxed, green environmental protection, good for health.

3. Spring: 22*30 row high-performance spring: pressure resistance never deformation, super support, overall comfort.

4. Bottom: 16# 1.2cm cotton: good air permeability, good respiratory circulation effect.

5. Perimeter: 16#+ 0.6cm cotton: clear stripes, beautiful and generous, strong permeability