Crafted from high quality, natural rubber for maximum durability, Bogs Classic boots will last for years. Insulated with 7mm of our 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 -30F). DuraFresh odor protection insoles keep little feet feeling fresh. 100% Waterproof .Height: 10". Circumference: 13" Comfort rated from temperate to -30F Durable hand-lasted rubber over a four way stretch inner bootie Constructed with 7mm waterproof Neo-Tech insulation Non-marking and self-cleaning outsole. Aegis antimicrobial odor protection insole Easy-on pull handles