Timberland Winsor Trail Waterproof Trainer For Men In Black Size 8. These waterproof trainers were engineered for exploring the scenic route. They're built for endurance with an upper made of synthetic material and ReBOTL™ fabric, containing at least 50% recycled plastic. The stability of a rubber lug tread pattern is designed for trail-hugging traction. The high-cushion GreenStride™ midsole is made from an EVA blend derived from at least 65% natural renewable materials, sugar cane, and rubber tapped from trees, helping deliver comfort that's always with you.