GORE-TEX â FOOTWEAR QUALITY STANDARD - FQS1
C. A. MATERIALS
1. Upper materials and other relevant components shall be tested to verify suitability for use in durably waterproof and breathable footwear.
2. Recommended minimum material MVTR tested according to DIN 53333 [mg/cm²/h] or equivalent.
MATERIAL
MVTR without reinforcement
(Thickness < 2.6mm)
MVTR with reinforcement
(Thickness < 2.6mm)
MVTR without reinforcement
(Thickness > 2.6mm)
MVTR with reinforcement
(Thickness > 2.6mm)
Nubuk Leather
7.5
4.5
5.0
3.0
Split Leather
10.0
6.0
7.5
4.5
Full Grain Leather
5.0
3.0
3.5
2,1
Textiles
12.0
7.2
12.0
7.2
3. Only hydrophobic materials shall be used. Wicking rates of leathers, textiles, reinforcing material, reticulated foams, insulation, sewing threads (for uppers), shoelaces, and other components shall not exceed 1cm after 2 hours.