Supernova Prima 1 vs Aero Glide 4

The Supernova Prima is adidas leaning all the way into soft, protective cushioning: a deeply padded max-cushion running shoe built for easy miles and long, gentle recovery days rather than speed. It sits above the daily Supernova Rise in the range, trading a little snap for a plusher, more forgiving ride underfoot. At 290g it is on the heavier side of the category, and with no plate and an 8mm drop this is a comfort trainer first and foremost, not a tempo tool. What you get for the £160 RRP is a smooth, cushioned road shoe that soaks up the pounding on higher-mileage weeks and keeps your legs feeling fresh. We rate it as a specialist rather than an all-rounder. If you want one shoe to do easy days and workouts, look elsewhere. If you want a dedicated cruiser for long, relaxed miles, it makes a strong case.

The Salomon Aero Glide 4 is the brand's big-cushion road running shoe, built for soaking up easy miles and long runs without asking your legs for anything back. With a tall 43.2mm heel stack and no carbon plate, this is a comfort-first daily training shoe rather than a racer. What sets it apart from most max-cushion rivals is the tall 11.7mm drop, which rolls you forward off a generous heel and suits runners who land heel-first. It is not the lightest shoe in the class at 250g, and it is not trying to be snappy. What you get instead is a soft, planted, protective ride that stays comfortable when the miles pile up. If you loved the Aero Glide 3, this is a familiar, refined take on the same idea. We rate it as a dependable cushioned trainer for steady runners who value comfort over pace.