... ; (2)high folding strength, without stink, smooth, durable; Waterproof Non Woven Insole Board 1. Product InformationItemWaterproof Non Woven Insole BoardModelX.C.D ... , water resistance;2. environmental friendly, breathable, healthy;3. moisture-proof, waterproof, comfortable;4. without formaldehyde, heavy metals or other harmful substances ...