The Timberland Mens Sprint Trekker Mid GTX is a comfortable goretex boot great for walking, hiking and trails. Gore-Tex is a waterproof and highly breathable membrane that stops wind and rain while allowing moisture vapour to escape, keeping you dry and comfortable. It is completely windproof, meaning cold winds can't pass through and create unwanted cooling. The membrane is bonded to high performance shell fabrics providing durability and further water repellency whilst being seam sealed for complete waterproof performance. An Ortholite footbed combines an EVA heel cup with Ortholite foam to provide a cool and cushioned environment underfoot. Environmentally friendly due to the recycled tire content, it will also not break down or become less effective over extended use. EVA is a durable foam which can be used in footwear to provide support and protection. The lightweight nature of this material produces a high-quality product without the weight and bulk of traditional materials. It is shock absorbent and flexible for all day comfort.