Douai is manufactured by means of both machines and manual labor. Especially some detailed and sophisticated parts or workmanship, are manually finished by our professional workers who have years of experience in handmade crafts. Its stretchable materials help to improve dexterity and comfort during a wide range of activities
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Before production, the electrode materials of Douai are carefully handled to prevent them from coming into contact with each other. Because contamination between the anode and cathode materials will ruin the battery. Its exterior shell is made of insulation materials, which can guarantee the maximum warmth
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Douai undergoes the following production processes: the preparation of metal materials, cutting, welding, surface treatment, drying, and spraying. Its digital controls are completely waterproofed to be washer machine and dryer safe
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Douai is strictly inspected during production. It is checked on its appearance (porosity, scratches, dents or holes, paint runs, blisters, debris contamination). It is perfectly suitable for hiking, rock climbing, cliff rappelling, and camping in the wild
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The design of Douai is based on the combined theories of the law of seals and the principles of applied science. Its digital controls are completely waterproofed to be washer machine and dryer safe
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It has a complete life cycle and high performance. This product allows users to maintain their body heat even when the temperature drops