When working in wet or damp conditions, it's important to wear appropriate safety boots to protect your feet from the elements. However, there are two types of safety boots that offer protection against water: waterproof membrane boots and water-resistant boots. While both offer some protection against water, there are important differences to consider.

1. Waterproof membrane safety boot: A waterproof membrane safety boot is designed with a special layer of material that prevents water from penetrating the boot. This membrane is often made of Gore-Tex or a similar material. These boots are ideal for work in very wet conditions, or for workers who need to work in water. Boots with a waterproof membrane tend to be more expensive than water-resistant boots and a little warmer, but they offer better protection against water.

2. Water-resistant boot: A water-resistant boot is designed to resist water, but is not entirely waterproof. These boots are often treated with a special coating or feature sealed seams to prevent water from penetrating the boot. Water-resistant boots are ideal for workers who occasionally work in wet conditions, or for workers who need to work in light rain. These boots tend to be less expensive and slightly more breathable than waterproof membrane boots, but offer less water protection.

In short, a safety boot with a waterproof membrane offers full protection against water, while a water-resistant boot offers partial protection. The choice between the two will depend on the conditions in which you work and the frequency with which you are exposed to water.

If you regularly work in very wet conditions, or if you have to work in water, a safety boot with a waterproof membrane is recommended.

If you occasionally work in wet or lightly rainy conditions and tend to get hot feet, a water-resistant boot may be sufficient. In any case, it's important to wear appropriate safety boots to protect your feet from the elements and to ensure your safety in the workplace.