The ID Pro Snowboard Boot pairs a Stage 3F liner with a low, soft collar shaped for extra room through the calf, built from plush, warm materials rather than a resized men's liner. An arch overlap construction keeps the fit snug across a range of foot widths, so the boot locks down without pressure points in the wrong spots. Double Back construction adds hold at the heel and is tuned to work with Speed Entry bindings, while the shell itself is built from Rise by Bloom, a bio-based foam made from algae pulled from compromised ecosystems. What Our Gearhead(R) Experts Are Saying:"I rode a full day without once feeling that familiar pinch at the top of my calf. The collar actually moves with my leg instead of fighting it, so by the last run my feet felt the same as my first."