Stylish, supremem comfort, perfect for alpine pursuits
I bought these as a back-up pair to my Millenium REACTIV 2-4 sunglasses, primarily for ski touring and alpine hikes. The Slack, like the Millenium, are super lightweight, very compact, and easily stowe inside a Julbo soft case, taking up little space inside my pack. But there when I need them. Also work well to wear off the mountain, as they have a classic and stylish appearance. My temples are pretty sensitive to arm pinch on sunglasses, but these I barely notice are there. No pinching, or discomfort. I've had good luck with the fit of the Rush (137mm front), Millenium (138mm front) and now the Slack (138mm front), all are wide enough to keep the arms from pushing against my temples. At the same time, I don't feel like the glasses are going to fall off. I wear them with a strap, but I've never had them accidentally fall off my face, or slide down my nose. The Spectron 3 lenses work well for most conditions throughout a sunny and/or partly sunny day. Get the Spectron HD polarized version if you want a more contrasty pop to your vision. The Spectron 3 and 4 are more like neutral density filters, they cut the light, without increasing contrast. I tend to go back and forth between polarized vs. non-polarized, so I cannot claim one to be better than the other, as it depends on the day, conditions, etc.
