Impermeable PlatinumI don't see many men's garments by Impermeable Platinum, but I found one great black gray striped sweater at Nordstrom! More at Impermeable Platinum

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Roll Up Your Sleeves for a Sharper Look! Blue blazer with sleeves rolled up
If you are wearing a long sleeve shirt, jacket, t-shirt, or sweater you can roll up its sleeves for a sharper look. With a button down shirt you can leave the top button open for a cooler appearance!