Columbia has the Columbia Women's Rainey Tall Rain Boots (Teal or Red) for $30 with free shipping for Greater Rewards members (free to join). Made of injected thermoplastic rubber, available in sizes 6 to 8.
eBay has the New Balance Flash Men's Running Shoes (Gunmetal Grey with Black & Blue, MFLSHLG1) for $37 with free shipping. List price: $65. Features sleek design, synthetic/mesh upper, rubber outsole.
eBay has the adidas PureBOOST All Terrain Men’s Running Shoes (Green Night/Core Black or Dark Burgundy/Core Black) for $80 - $20 in cart = $60 with free shipping. List price: $160. The boost midsole provides energy-returning cushioning with every step, and a water-repellent knit upper, free shipping and free returns.