This multi-functional waterproof outdoor cycling sports insulated water bottle bag and phone pouch with travel water cup holder is made of high-quality polyester material, featuring strong durability and excellent waterproof performance, which can effectively protect the items inside the bag from moisture. It measures 3.94 inches in length, 4.72 inches in width and 6.3 inches in height, weighing only 0.35 lbs, being light and compact without causing burden, which is very suitable for daily commuting, outdoor cycling and short trips