Shires Airflow Elasticated GP Girth Black. Ride with comfort with the Shires Airflow Elasticated GP Girth. Engineered with Coolmax technology, the Airflow Elasticated GP Girth provides next level comfort. Made with a perforated dense foam for ultimate comfort and shock absorbing qualities whilst releasing heat and moisture from the skin to help reduce the risk of chafing and discomfort. With a hydrophobic Coolmax surface to help repel moisture to avoid sweat from soaking in, the Airflow Elasticated GP Girth comes with an ergonomically shaped design around the elbow with nylon webbing to prevent overstretching. With roller buckles for ease of use, the Airflow Elasticated GP Girth is complete with double layer elastic inserts for even pressure distribution and stainless steel fitting.