Insulated work boots use linings to trap heat without adding excessive bulk or weight. The linings are measured in terms of their gram rating, usually ranging from 100g–1,000g. If you work in cold conditions but are always on the move generating body heat, consider a boot with a lining rated in the 100g–250g range. For stationary jobs in the extreme cold, look for an insulated work boot lining in the 750g–1,000g range.

Safety toe work boots have an internal toe cap that protects against compression and impact injuries. The toe caps are made with either steel or composite materials. Steel-toe work boots are less expensive than composite-toe work boots, but they are also heavier and may conduct heat or cold. Composite-toe work boots are lighter, they don’t conduct heat or cold and they won’t set off metal detectors.

Waterproof work boots feature waterproof materials and usually have a thin, waterproof lining. Look for work boots that are breathable and feature moisture-wicking and anti-microbial technology to keep you comfortable without trapping moisture and sweat.