Wow what can I say about this shoe. Just finished my first endurance race. Kusam Klimb on northern Vancouver Island. It is a 23km with the first 6km climbing to nearly 5000ft elevation gain. It is a high altitude , scrambling, mud, water, rain, rocks, ropes, snow, knee breaking, muscle fatiguing, heart pounding, excitement, and this shoe kept up real well. Ran through rivers and streams and the shoe expelled the water great. Still a very comfortable fit when the shoe is wet. The sole held up very well and kept the rocks at bay. The grip and Vibram sole produced exhalant traction going up in the mud and down the steep wet slope. I have bought 5 pairs of Merrell minimalist shoes in the past year or so, and was nervous to try the Bare Access Trail for the first time ever without a test run ,and on such a challenging race. You didn't let me down at all. Thanks Merrell for making such an amazing product.