Adrenaline GTS 25 vs ForeverRun Nitro 2

The Adrenaline GTS 25 is Brooks doing what Brooks does best: a dependable stability running shoe built to log miles, week in and week out, without any drama. This is the shoe you reach for when you want support that stays out of the way. The GuideRails system only steps in when your stride starts to collapse inward, so if you run neutral it barely registers, and if you overpronate it gently keeps you honest. With a 10mm drop and a 37mm heel it sits squarely in the traditional daily training shoe camp, aimed at runners who want structure and a familiar, protective ride rather than bounce or speed. At 301g it is not light, and it never pretends to be a tempo shoe. What you get instead is consistency. In our view this is one of the safest first-stability-shoe picks in the UK, and a reliable rotation workhorse for the runner who just wants to get out the door and train.

The ForeverRun Nitro 2 is Puma's answer to the modern stability question: hold your foot steady without a hard medial post, and cushion it enough to still feel good at the end of a long run. It is a road stability trainer built for higher mileage, with a 38mm heel and 28mm forefoot giving you a genuinely deep, protective platform and a traditional 10mm drop that most heel-strikers will settle into fast. The support comes from a wider, structured build and Puma's RunGuide sidewalls rather than a firm post, so it guides rather than corrects. At 295g it is not light, and you feel that. This is a shoe for steady, controlled miles, not a shoe you will want to pick up the pace in. If you overpronate mildly or just want a stable, cushioned daily workhorse that stays composed when you are tired, it earns its place. If you are chasing lighter, springier stability, look at the newer wave of soft-support trainers instead. It replaces the ForeverRun Nitro 1 and keeps the same job description.