Douai has passed all kinds of performance testing. The testing covers dimensional stability testing, stretch testing, colorfastness testing, pilling and abrasion resistance testing, etc. The product can improve the stability of the electrocircuit effectively
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The active printing and dyeing process is adopted, and no harmful substances such as formaldehyde and nitrogen are added during the printing and dyeing process, which is environmentally friendly and healthy, comfortable and skin-friendly.
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Douai goes through complete production steps. These steps include feet shape research, CAD design, materials processing, sewing, stitching, and assembly. The product has been certified under CE and RoHS
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Douai meets the requirements of the destination market’s regulations. It must comply with REACH directives, CPSIA, SASO, and AATCC. The product has been certified under CE and RoHS
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During the design of Douai , the principle of the human physical structure is involved. Weight distribution, physiological structure development, and the anatomy and movement of the foot have been considered. It, processed in dust-free workshops, contains no impurities
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It has good colourfastness. It goes through high-cost dying processes which enable the colors to hold well for many years. The product is extremely miniaturized, occupying little space