Durable and classic crew sweatshirt made of a premium heavyweight 13.5oz/450gm fleece. The HD stands for Heavy duty. Built to outlast any adventure you bring it on. Featuring reverse coverstitch sewing on all seams for durability and strength. This crew is clean and simple with a custom designed VOLTAGE wordbolt on the front left chest designed by Tom Bunney. No graphic on the back. Sick.