The Amped Line was developed during the rise in popularity of High Pressure Air (HPA) Airsoft systems in the United States. Amped Heavy Weave line features a thicker sheathing like the one on our Tippman High Pressure Line. The thicker weave sheathing provides a tough layer of protection while still allowing the inner line to flex as needed during gameplay. Due to the nature of the thicker braid, our heavy weave lines are also more vibrant visually than our standard lines. Whether you choose a bright colorway or more subdued natural colors for your Amped Heavy Weave line, your line will stand out visually! This helps improve refresh rate and helps drive air-hungry systems like Daytona Guns or GBB guns that have been HPA tapped. Have peace of mind when you're on the field knowing that your Amped Line is hand-made and tested in Pittsburgh, Pennsylvania in the United States of America. Best of all, our lines carry a limited lifetime warranty against manufacturer's defects.