✔ Keeping the science of the foot in mind these were constructed with durability, breathability, and efficiency for safe traveling in even the harshest of environments
✔ The interior liner is separate, which provides an adaptive fit that allows for incredible breathability and weather protection
✔ The liner is made from a stretch nylon mono-mesh that will not conform or absorb moisture
✔ Not to keep bragging about the liner, but the liner does not have a tongue, which reduces the build up of heat and pressure on the top of your foot to keep you comfortable
✔ The upper features a non-woven Durable Water Repellent Finish (DWR) microfiber, PU coated nylon yarn, and high abrasion TPU film for the utmost in maintaining air permeability, abrasion resistance, and moisture dispersion. So great.