The world's most waterproof/breathable membrane. GORE
-TEX fabrics are perfect for highly aerobic sports that require the ultimate in waterproof / breathable technology in 3
-layer construction. The membrane has a over 50,000mm waterproofness rating and 35,000～44,000g/㎡ ·24 hrs breathability rating. (JIS L
-1099 B
-1 method) The Surface of fabric is treated with a durable water repellent finish. An all weather hat with the soft feel of cotton. Completely waterproof, all seams and stitching have been sealed. Great for everyday use and travel.
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