Different types of climbing warrant particular features for harnesses. Sport climbers typically use minimalistic harnesses, some with sewn-on gear loops. Alpine climbers often choose lightweight harnesses, perhaps with detachable leg loops. Big Wall climbers generally prefer padded waist belts and leg loops. There are also full body harnesses for children, whose pelvises may be too narrow to support a standard harness safely. These harnesses prevent children from falling even when inverted, and are either manufactured for children or constructed out of webbing. Some climbers use full body harnesses when there is a chance of inverting, or when carrying a heavy bag. There are also chest harnesses, which are used only in combination with a sit harness. Test results from UIAA show that chest harnesses do not put more impact on the neck than sit harnesses, giving them the same advantages as full body harness.

Apart from these harnesses, there are also caving and canyoning harnesses, which all serve different purposes. For example, a caving harness is made of tough waterproof and unpadded material, with dual attachment points. Releasing the maillon from these attachment points loosens the harness quickly.

Canyoning harnesses are somewhat like climbing harnesses, often without the padding, but with a seat protector, making it more comfortable to rappel. These usually have a single attachment point of Dyneema.
Provide me a list of the different types of harnesses used in rock climbing
Minimalistic Harness: has gear loops that are sewn on
Lightweight Harness: has leg loops that are removable
Big Wall Harness: uses padded waist belts and leg loops
Full Body Harness: mostly for children with small pelvises, or for scenarios that risk inversion
Chest Harness: to be used with a sit harness
Caving Harness: made of ultra durable material and multiple attachment points
Canyon Harness: has a built-in seat protector for rappeling.