Hydro Crunch fabric grow pot bags provides great support, while allowing air to travel into the root system. Improving drainage & keeping the root system from overheating on hot days. Help plants become established more quickly after transplanting. Grow bags improve growth of plants by allowing more rapid & healthier root development. Breathable fabric allows excess moisture to escape & optimal soil temperatures. Decreased risk of transplant shock, creates improved overall root structure. Made with heavy duty cloth & sturdy contrasting stitching pot.