KEEN Blue Sandals for Men for sale | eBay。The Keen Men\'s Waterproof Blue/Gray Sandals in size 9.5 are a stylish and functional choice for outdoor activities. These sandals feature a drawstring closure for a secure fit and a waterproof synthetic upper and lining material for durability and protection. The slip-on style and rubber outsole provide comfort and support, making them ideal for both activewear and casual occasions during the summer and spring seasons. The solid blue color with logo accents adds a touch of style to these practical and versatile sandals from the KEEN brand.