These are among the best overshoes we’ve tested. They’ve got a good fit and shape, snug but not restrictive over race shoes at the top of their size range (XL fits sizes 42-44). They offer good windproofing, are well constructed with very tough seams and a Kevlar-reinforced toe, and have plenty of reflective material.
We found they kept our feet warm for up to 90 minutes even in sub-zero conditions, but eventually the Neoprene will trap moisture and you’ll find your toes getting chilly. That said, we’ve yet to find overshoes that work indefinitely when the mercury really drops. The only improvement we’d make is a waterproof zip. Sizes S-XXXL.