As a full gaiter, the ING system zips up the back after the boot is put on. An elastic drawstring and cordlock secure the top around the calf. A dual elastic band symmetrically seals the bottom against the tongue of the boot. An easy-to-attach hook secures the front onto the nearest lace. The ING system can also be easily converted to an in-track snow collar by simply releasing the elastic calf drawstring and rolling the gaiter down to the ankle. A second internal drawstring now becomes available to secure the snow collar around the ankle.