SUSPENSION RELIEF STRAPS should be ordered with each harness without further thinking: they serve to alleviate the potentially lethal suspension trauma from a fall and therefore could save your life, since applying these loops give you a substantial amount of precious minutes extra-time before a rescue arrives! On top of that, these SUSPENSION RELIEF STRAPS have no expiration period and can be reused. Take them with you each and every time you use your harness. Better safe than sorry!