Designed for all-day comfort, our socks are made with unbelievably soft and durable alpaca fibers. Providing extra cushion in the toe and heel, perfect boot sock height, and temperature regulation to keep your feet comfortable even during long work hours.

Alpaca fibers have a hollow core that helps regulate temperature, making Hollow Boot Socks so breathable that they can be worn year-round - keeping your feet warm in the cold (up to 3x warmer than sheep’s wool!), or cool in the heat.

Unlike sheep’s wool, alpaca fibers contain keratin, a protein in hair that provides antifungal and antimicrobial properties. This helps keep your socks stink-free and allows you to go much longer between washings than traditional wool socks.

Alpaca fleece can absorb up to 30% of its dry weight in moisture and still feel dry to the touch. As it absorbs, it quickly moves moisture away from your skin to the surface of the fabric where it then evaporates - making them a perfect match for rain, snow, sweat, or whatever else the day brings.

Hollow Socks are proudly made in the USA utilizing some of the most modern manufacturing techniques available. Tested on job sites across the country, Hollow Boot Socks are bound to become your new everyday pair.

"Wear my socks daily for work as a firefighter they keep my feet warm and dry all day!!!"

★★★★★ - Jerry N

"These socks are warm, soft and seem padded, easy wear for Fire Dept, EMS or Law Enforcement duty wear, tall enough and stay above your boots. Comfortable for 12 hours"

★★★★★ - Daniel J

"These are perfect for my son & husband who both work in construction & need there feet to stay warm & dry in all kinds of situations. They also stay up & don’t bunch around their ankles inside their boots! 5+ stars!!!"

★★★★★ - Jen R

Ready to give Hollow a try? We’re confident that you’ll never want to set out on another job without them. If for some reason you find that alpaca socks aren’t right for you, we offer a 30-day money-back guarantee, no questions asked. So what do you have to lose?