{"id":828343,"date":"2026-04-11T20:20:24","date_gmt":"2026-04-11T18:20:24","guid":{"rendered":"https:\/\/lucacastelli.com\/prodotto\/la-sportiva-aequilibrium-trek-gtx-4\/"},"modified":"2026-04-11T20:20:24","modified_gmt":"2026-04-11T18:20:24","slug":"la-sportiva-aequilibrium-trek-gtx-4","status":"publish","type":"product","link":"https:\/\/lucacastelli.com\/en\/product\/la-sportiva-aequilibrium-trek-gtx-4\/","title":{"rendered":"La Sportiva Aequilibrium Trek GTX"},"content":{"rendered":"<p>Designed to combine protection and support with exceptional walkability and freedom of movement, even on the most technical terrain. La Sportiva know-how and technologies from the mountaineering world to develop the perfect boot for long trekking and backpacking: an excellent compromise between technical performance and comfort. Smooth rolling and natural foot placement are guaranteed by the Double Heel\u2122 construction sole, while maximum traction on ascents and braking control on descents are ensured by the Impact Brake System\u2122. Resoleable tread that extends the product&#8217;s lifespan and guarantees sole quality. The abrasion-resistant leather upper molds to the foot&#8217;s ergonomics, making this boot perfect for any adventure.    <\/p>\n<p>Waterproof membrane: GORE-TEX Performance Comfort<br \/>\nSole height (mm) &#8211; Heel: 29<br \/>\nSole height (mm) &#8211; Forefoot: 17<br \/>\nDrop (mm): 12<br \/>\nLug height (mm): 5<br \/>\nWide fit: No<br \/>\nInsole: La Sportiva Mountain Hiking insole<br \/>\nLining: GORE-TEX Performance Comfort<br \/>\nMidsole: Polyurethane foam with abrasion-resistant TPU film<br \/>\nPatent: 3D Flex System Evo\u2122 &#8211; Impact Brake System\u2122<br \/>\nOutsole: Vibram\u00ae rubber tread with PU foam coating<br \/>\nUpper: 1.6 mm water-repellent Hydro-Perwanger\u00ae leather<\/p>\n<p>&nbsp;<\/p>\n<p>+ Abrasion-resistant fabric edging<br \/>\n+ Midsole with internal foam inserts for greater<br \/>\ncushioning and lightness from reduced use of rubber<br \/>\nlayers<br \/>\n+ Water-repellent leather upper, GORE-TEX membrane and abrasion-resistant edging to tackle any terrain and extreme weather conditions.<br \/>\n+ 3D Flex System Evo\u2122 directional flex with shaped and protected ankle: allows better foothold control and perfect ankle mobility<br \/>\n+ Exceptional walkability thanks to the innovative<br \/>\nDouble Heel\u2122 construction: the pronounced<br \/>\ndual rear lug geometry<br \/>\nincreases braking effect on descents and allows<br \/>\nsmoother rolling, reducing muscle<br \/>\nfatigue<br \/>\n+ Great traction and control during ascents and descents thanks to the Impact Brake System\u2122 lugs<br \/>\n+ Exceptional walkability thanks to the innovative<br \/>\nDouble Heel\u2122 construction: the pronounced<br \/>\ndual rear lug geometry<br \/>\nincreases braking effect on descents and allows<br \/>\nsmoother rolling, reducing muscle<br \/>\nfatigue<br \/>\n+ 3D Flex System Evo\u2122 directional flex with shaped and protected ankle: allows better foothold control and perfect ankle mobility<br \/>\n+ Water-repellent leather upper, GORE-TEX membrane and abrasion-resistant edging to tackle any terrain and extreme weather conditions.<br \/>\n+ Abrasion-resistant fabric edging<br \/>\n+ Midsole with internal foam inserts for greater<br \/>\ncushioning and lightness from reduced use of rubber<br \/>\nlayers<br \/>\n+ Great traction and control during ascents and descents thanks to the Impact Brake System\u2122 lugs<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Designed to combine protection and support with exceptional walkability and freedom of movement, even on the most technical terrain. 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