I wore my new Shimano Gore Tex WR-80 winter shoes yesterday. It was about 33 during most of the ride. I wore my hiking socks on purpose, to see what thicker socks and no chemical toe warmers felt like. The shoes have lots of wiggle room, and are one of the few winter shoes that are women specific sized and come in small sizes. In fact, I am not sure if they even make this shoe anymore; I got it from a place in the UK for 50% off and free shipping. My take is that I have spoiled myself by using chemical toe warmers in temperatures in the 40s, with my regular shoes and booties. I am used to toasty warm feet! My feet were not cold and my toes were freely moving. But, they felt "cool." I would say that I might still use the warmers for temps below 35. Usually I would have worn my Woolie Bully socks, that are thinner, but very warm. While there is enough room for 2 pairs of socks, I think that would make my feet feel constricted.