Polly Power boots are designed for year-round comfort, the Polly POWER has durable lightweight polyurethane construction that makes it perfect for agricultural, outdoor, and industrial use. Lightweight Polyurethane Construction. PU/TPU Combination Outsole for Extra Slip and Abrasion Resistance. Non-Toxic Polly Hydromic Antibacterial Layer. Shock Absorbing Heel Design. Polly PU Antimicrobial Foot. 100% waterproof, Puncture resistant, molded one piece out sole, comfort range -40 to 80F, Height 15”