High performance tear repair kit that meets military & ASTM standards and specs.Tear Aid patches are brilliant when you need to repair something that needs to be abrasion, moisture and saltwater resistant, able to withstand UV sunlight and extreme temperatures (-20ºF to 140ºF) and needs to be repaired quickly and simply. The industrial-strength polyurethane patches are durable, flexible, airtight, watertight, puncture resistant, see-through (they work with all colours), easily cut with scissors and stops tears from running.