On Cloudrunner 2 レビュー：静かな安定感を備えたスムーズなデイリートレーナー

はじめに

On Cloudrunner 2 は、ブランドが「安定性」または「ガイダンス」カテゴリーと呼ぶ位置づけにありますが、従来の安定型シューズとして自らを主張することはありません。そのさりげなさこそが最大の強みであることが分かります。本格的に楽しいニュートラル系デイリートレーナーのように走れ、少しサポートが欲しいランナーにも押しつけやコントロール感を感じさせない、ほどよいガイダンスが内蔵されています。価格は150ドル前後で、一部の入門レベルのデイリートレーナーよりやや高いですが、丁寧に作られたアッパーとスムーズな走行感がその追加費用に見合う十分な理由になります。

アッパーのフィット感と快適性

これはOnがこれまでに生み出した中でも最も快適なアッパーの一つです。舌とヒールカラーをふっくらとしたパディングが覆い、ゲセット構造の舌がレーシングシステムと相まって、手間をかけずにしっかりとホールド感を得られます。硬めのサイド補強によりシューズを締め上げてぴったりと安定したフィットが得られ、テスト中にヒールの浮きは全く問題になりませんでした。

通気性はクラストップではありませんが、朝の気温が60〜70度台（華氏）に上がっても軽いメッシュは快適さを保ちました。ヒールカラーは好みによっては足首周りでやや低めに位置しますが、柔らかなパディングが足首を十分に固定するため、ほとんど気になりませんでした。フィット感の評価は明らかに分かれました。幅広でボリュームのある足を持つテスターは、周囲でも最高のフィット感のアッパーの一つと評価しましたが、幅が狭くボリュームの少ない足のテスターは、靴ひもをどう調整してもとにかく余裕がありすぎると感じ、きつく締めるとアッパーにたわみが生じました。また、母趾の内側に沿った軽い不快感も現れました。これは他のシューズでも一部のラストが引き起こすものと似ています。

ミッドソールと走行性能

The midsole uses On’s higher-performing Helion foam, and notably there is no speedboard this time, a component many On models have used in the past. The stack comes in at 31mm in the heel and 21mm in the forefoot, a 10mm drop measured at the midsole level. The foam itself is not a jaw-dropper, feeling more like an ETPU-style compound with a bit of bounce, but the result on the run is what matters.

The ride is remarkably smooth through the stride, with just the right amount of cushioning in the right places, whether the run was short or long. The CloudTec hollow cloud design remains, and the former cutout is gone, which means rocks no longer get trapped underfoot, a long-running complaint finally addressed. Guidance comes from a wider platform, sidewalls that cradle the foot, and a clip in the rear that firms up the heel slightly. None of it feels obtrusive, which is exactly how modern stability should be done.

重量と日常でのパフォーマンス

At around 10.15 oz (roughly 290g) for a US men’s 10.5, the Cloudrunner 2 lands right in the same territory as comparable mainstream daily trainers, and it feels lighter than the numbers suggest. There were no complaints about weight through the stride; it simply rolls along smoothly and comfortably.

As a daily trainer to gobble up miles in, especially if you like the On aesthetic, it works very well. It is also a genuinely comfortable walking shoe, which makes it a strong candidate for summer travel: a shoe that can handle sightseeing and still pick up miles while you are away. A waterproof version and an extra-wide version are expected, which would only widen its travel appeal.

アウトソールと耐久性

The outsole is where On appears to have economised. Less than half of the outsole carries rubber, concentrated in the forefoot and heel, with plenty of exposed Helion foam elsewhere. Grip was fine for a basic daily trainer in dry conditions, and no durability issues showed up during testing, though runners who frequently encounter wet pavement may want to keep that partial coverage in mind.

購入前に検討すべきこと

The main dividing line here is fit. If you have a wider or higher-volume foot, this upper is likely to feel premium and welcoming. If your foot is narrow and low-volume, dialing in the lockdown may be frustrating no matter how you adjust the laces. The heel collar also sits low, which some runners will notice. And while the stability elements are genuinely subtle, runners expecting firm medial posting should understand this is guidance blended into the ride, not a traditional stability shoe.

購入アドバイス

At $150, the Cloudrunner 2 costs a bit more than an entry-level version of comparable daily trainers, but given the upper construction and overall refinement, the premium feels justified. It is also a good sign for the wider stability market that brands are now designing guidance into the whole platform rather than bolting on a block of firm foam, making shoes like this accessible to runners who never realized they wanted support at all.

まとめ

The Cloudrunner 2 is one of the more pleasant neutral-feeling daily trainers of the year, with a smooth Helion ride, a premium-feeling upper, and stability so quiet you may not even notice it. If you want a little guidance without any bulk, it delivers exactly that, provided the roomy fit suits your foot shape.