Along with loft, sand wedges also have a couple of other specifications that make it suitable for sand traps.
They have a bounce angle and heavier swing weight.
The bounce angle refers to the angle of the bottom of the wedge head. It is designed to allow the club to glide through the sand more efficiently instead of getting caught, causing a “fat” shot.
Bounce angles are typically between 10 and 16 degrees.
Sand wedges have heavier swing weights for a similar purpose. The heavier weight allows the momentum from the swing to carry the clubhead through the sand without getting caught up.