(1)waterproof, environment friendly, fadeless; (2)high folding strength, without stink, smooth, durable; cheap & high quality Insole Board 1. ... environmental friendly, breathable, healthy;3. moisture-proof, waterproof, comfortable;4. without formaldehyde, heavy metals or other ... ;2. Professional technical & manage people;3. Strict quality control;4. Optional products grade;5. Reasonable price ...