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Running and trail jackets (rain jackets and windshells) compared by weight, waterproof rating and breathability, in one list of articles. They are also checked against the mandatory-gear rules of trail races.
Pictured (Rakuten Ichiba): On Weather Jacket / On Performance Jacket Waterproof / On Performance Long-T / On Weather VestHow to Choose On Running Apparel8 pieces compared on water repellency, waterproofing and pockets. For On running apparel, take the Weather Vest on cold mornings and the Performance Jacket Waterproof in the rain. I compare 8 pieces sold on the official Japan site by fabric, water repellency and waterproofing, wind protection, reflectivity, pockets and fit, and work out the price gap between the jacket and vest and the total for a matching top and bottom.Shoes & gear · Oct 15, 2026
Pictured (Rakuten Ichiba): Teton Bros. Tsurugi Lite JacketTsurugi Lite Jacket ReviewThe 2026 version keeps 240g but uses a face yarn 1.5x heavier. The Teton Bros. Tsurugi Lite Jacket (2026 version) is a waterproof shell for people who keep moving in it on rainy mountains. 240g (M), JPY 41,800, 30-denier Täsmä face fabric. I cover the changes from the 2025 version, how to choose between it and the Feather and Yari, fit, and whether it meets mandatory gear rules, all by official specs.Shoes & gear · Oct 15, 2026
Pictured (Rakuten Ichiba): Teton Bros. Feather Rain JacketFeather Rain Jacket ReviewThe 2026 version is 10g heavier at 195g, same price. The Teton Bros. Feather Rain Jacket (2026 version) is rain gear for runners covering long trails with a pack. 195g (M), 20,000mm waterproof rating, over 200,000 cycles in abrasion testing, JPY 31,900. I cover the changes from the 2025 version, the 70g gap to the Yari, fit and mandatory gear.Shoes & gear · Oct 15, 2026
Pictured (Rakuten Ichiba): mont-bell Torrent Flier JacketTorrent Flier Jacket ReviewReading the 2026 model, now 47g heavier. The mont-bell Torrent Flier Jacket (2026 version) is the shell for people who keep moving in rain gear through overnight trail races. 233g, waterproof rating 20,000mm+, breathability 50,000g, JPY 25,500. Why it's 47g heavier than before, how it differs from the Versalite, fit, and whether it meets mandatory gear rules.Shoes & gear · Oct 15, 2026
Pictured (Rakuten Ichiba): mont-bell EX Light Wind Jacket / mont-bell Cool Light T / Sleeveless Shirt / On Performance-T / mont-bell Cross Runner Shorts LightA Full Running Kit (Top, Bottoms, Socks) for 218gShirts, pants, socks and jackets compared by official weight. A full running kit of top, bottoms and socks comes to 218g and JPY 12,700. The first thing to add is mont-bell's 45g wind shell. I compare mont-bell, Nike, On, Tabio and The North Face by weight, fabric and price from their official Japan sites, and say exactly what to wear for each temperature and distance.Shoes & gear · Oct 15, 2026
Pictured (Rakuten Ichiba): Headlamp for trail runningTrail Running Mandatory Gear Across 4 Races' Official Rules80-lumen light, 1 L of water, 130×200cm blanket. I compare trail running mandatory gear lists across the official rules of 4 races. The base is 9 items required by 3 of the races, and 7 items have numeric specs, such as a light of 80 lumens or more for at least 4 hours, at least 1 L of water, and a blanket of at least 130×200cm. I also worked through the 2kg gear rule.Trail running · Oct 15, 2026
Pictured (Rakuten Ichiba): mont-bell EX Light Wind Parka／The North Face Swallowtail Hoodie／mont-bell Versalite Jacket／Salomon BONATTI Waterproof Jacket12 Running Jackets Compared by Weight and Waterproof RatingOnly 3 mont-bell jackets mention seam tape on the official page. My pick for a running rain jacket is the mont-bell Versalite (143g, waterproof rating of 20,000mm or more, seam-taped). I compared 3 windshells and 9 rain jackets from 6 brands by weight, waterproof rating, breathability and price on the official Japan sites, and chose my pick for a rainy marathon and for a 100km trail race.Shoes & gear · Oct 15, 2026
