Crafted from high quality, natural rubber for maximum durability, Bogs Classic boots will last for years. Insulated with 7mm of Bogs waterproof Neo-Tech™ and lined with Bogs Max-Wick moisture-wicking technology. Easy pull-on handles are kid-tested and approved. All Bogs Classics for kids are comfort rated to withstand sub-zero temps (up to -30°F). DuraFresh odor protection insoles keep little feet feeling fresh.