These look like a strong protective boot (that I have no wish of putting to the test!). But they are a short boot, so will not be as protective as a full height one,
They have an entry zip/flap on the inside of each leg (against the bike) which has a zip for the bottom half and Velcro the whole length of the flap with a loop to help pull them on.
I have only had the boots a few weeks and during that time the pull up loop has proved to be a needed and very useful feature. The large amount of Velcro and short zip less so, which make opening and closing the boots a bit of a faff!
I understand these are now a discontinued product and I was very pleased to find a pair in my size. Although named "Pillion" boots they do have a gear change pad on both feet so work fine for the rider.
Would have received 5 stars if the entry zip was the full height.