Soft Alpaca Wool Felt Winter Warm Shoe Boot Insoles SIZE:M 13 Input Voltage Range: 110V to

Input Voltage Range: 110V to 130V AC

-Smudge-Free

-Built to last a lifetime

we recommend you increase the use time of the insole every day

-100% NATURALLY GROWN

Soft Alpaca Wool Felt Winter Warm Shoe Boot Insoles SIZE:M 13 Input Voltage Range: 110V toSoft Alpaca Wool Felt Winter Warm Shoe Boot Insoles Warmth & Resilience: Alpaca fleece is known for its warmth and silki texture while wool provides additional cushioning and strength. Alpaca Felt Inserts: These alpaca wool blend insoles are 80 20 alpaca wool blend batts,about 1 5" thick. Lightweight & Durable : These insoles will last you longer without collecting moisture, odors or dirt. Easy Care: Easily cleaned by dusting or wiping since dirt only