Running shoes are getting incredibly light these days, and if you’ve just bought your first new pair in a while, you might be wondering if something that feels so delicate in your hands is really up to the demands of your feet on the trail.
One of the reasons shoes like the Merrell Long Sky 2 Matryx and The North Face Flight Vectiv can weigh in at under 250 grams per shoe (that’s less than an orange, if you're wondering) is down to advancing technologies such as EVA foam in the midsoles, and a material called Kevlar, which is starting to become a common ingredient in the uppers of these shoes.
