Latex gaskets are tough, but they don't last forever. The NRS Neck Gasket is your go-to choice when it's time to replace that vital part of a dry suit or dry top. This gasket will fit most dry suits or dry tops. Use a 9 1/2"-10" diameter form (see linked printed and video instructions). Kokatat suits require the larger form. The latex on this high-quality gasket is 0.6 mm thick. Linked here on the page are clear step-by-step replacement instructions. NRS Repairs technicians can also replace gaskets, find them under Customer Service at the top right of the page.