I bought these last winter to go to the snowy mountains to see frost flowers, and I wanted a waterproof type. I get blisters with various shoes, but I didn't get any blisters with these, and I used them twice for mountain climbing. However, the waterproof type seems to be a bit tight, and I didn't realize I had to buy a size up. I bought the same size as the Lone Peak, so it's tight with thick merino wool socks. I usually wear 24 cm. I've only used them twice, but please check the photos for the slight rubbing on the toe area, and purchase accordingly. I was wearing them with the insoles removed, so I will send them with brand new, unused insoles! The Altra Olympus series is supported by many people, from hikers to trail runners. The latest model, "Olympus 5," is equipped with a Gore-Tex bootie. This "ALTRA / Olympus 5 HIKE LOW GTX" adds waterproof and breathable performance. With the same light-weight feel of a low-cut shoe, the stability created by the sole, and the refined functionality, it is equipped with high waterproof and breathable performance and a supple and strong leather upper. This is a reliable shoe that is light-weight but not inferior to heavy-duty shoes, allowing you to confidently step into more challenging mountainous areas. A new waterproof model with GORE-TEX performance has arrived from the OLYMPUS, a popular model alongside LONE PEAK. The OLYMPUS series is known for its overwhelming cushioning performance, which reduces the burden on the body even for long hours and long distances, and is a popular model among hikers who want to walk comfortably. You can walk with peace of mind by using natural leather that is durable even on rough roads such as tree branches and rocky areas. In addition, by adopting Vibram's Megagrip, like the original OLYMPUS model, the weight of the outsole and the depth of the lugs are reduced, making it comfortable to use even on flat ground. The cushioning that doesn't sink in even when carrying heavy luggage and the peace of mind of Megagrip, which allows you to stop at any time without slipping, have been highly praised and chosen by mountain guides who are active in Oze. The inner flex structure, which has been used since the beginning, allows the shoes to react more flexibly even on unstable surfaces, ensuring high stability. The pattern of the outsole provides strong traction, propelling you forward.