Montane Jackets & Smocks To be at the very pinnacle of the outdoor clothing market you have to produce the highest quality products. Adventure Worthy Portability: Montane Minimus Smock Jacket Review. Montane are at the top of the game and produce an outstanding range of jackets renowned for technical performance, innovation and the very best materials that are suited to a military, army or combat environment. Montane Minimus Smock Rain Shell The Montane Minimus Smock is an incredibly lightweight pullover style, waterproof breathable hard shell weighing just 5.7 ounces in a size XL. Weighing just 5 ounces and packing to the size of an orange, the Minimus Smock fits the bill of any ultra-light traveler or hiker. If I were an adventure traveler looking for a lightweight hardshell jacket, I would not want to pass over the Montane Minimus Smock. April 15, 2015 By Jonathan Looi 2 Comments.