I've been using a pair of Superfeet Wintergreen insoles. I don't think they got me as much as the Toasty Feet would, maybe an extra 5º instead of 10º, but they are thinner and I need the arch support. I wear my Lake MX255's all day at work and I dare say they're probably more comfortable with the Superfeets than they would be with the Toasty Feets.