Special edition of the iconic TX4 model. The use of the classic logos, the reference to the legendary slogan "Climbing on the Moon" and the use of the historic colors that marked the golden years of climbing are a true tribute to the origins of La Sportiva. Originally, it was a common practice to resole shoes. Thanks to the use of the Resole Platform, which makes it easier to resole the product, the TX4-R has a longer life cycle. Product details Optimal for: Access & via ferrata Climbing Speed hiking Running Mountaineering & Alpine tours Made for: Men Upper material: Suede + protective PU-Tech Lite 1.5 mm edging and protective rubber tip Insole: Ortholite Hybrid Approach 4 mm Patent: Resole Platfom Features: Vibram Mega - Grip sole with IBS and Climbing Zone on the front Materials: Chuck: Mesh Inside/Midsole: Recycled compressed EVA + Resole Platform insert for easier resooting Technologies and manufacturing processes EVA - COMPRESSIONEVA - COMPRESSION:Standard compressed EVA midsoles provide durability and responsiveness on soft surfaces where the necessary cushioning is less. - The La Sportiva Mountain Running footwear line uses three different midsoles, depending on style and performance expectations Impact Break System - Innovative system on the sole to absorb the impact, also helps in the climb and assists in braking. - Designed and developed in the research and development center of La Sportiva, it offers real benefits during the run: the negative effect of the impact with the ground is minimized. Due to the special arrangement of the pimples, some of them come into contact with the ground beforehand, so the impact of the shoe profile is softer.