I purchased these last Spring to use for cold starts on single and multi-day ski tours (camping). So far, I have only used them skinning and skiing on about half a dozen day tours with single digit to -10F temperatures paired with TLT6 27.5 mondo, 297mm BSL. The mediums fit fine and there is no interference with my tech bindings or automatic crampons. These keep my toes from going numb on cold outings. They are light, compact and easy to use. I've used them at the start of tours , all day, and at the end of tours when temperatures were plummetting. Yesterday was a perfect example. The trailhead was -10F in the morning. I hiked up into the sunshine and later removed them while ski touring in intense solar. Then I had skied down low into a frigid North aspect basin, transitioned and began skinning up. After 1000 vert of climbing without the boot gloves, I noticed my toes were on the edge of numb and the daylight was waning. I stopped, put on the boot gloves, an extra layer of clothes, and continued another 1000 vertical feet to the top. My toes felt comfortable within 5 minutes of donning the boot gloves on that last push to the top and all way down the 2k descent back to the trailhead as dusk approached. They have earned their right to make it into my ski pack!
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