Ghost Max 4 vs Glycerin 21

The Ghost Max 4 is Brooks at its most protective: a max-stack cushioned running shoe built for comfort over speed. With 40mm of foam under the heel and a 6mm drop, it stacks up plenty of protection for easy miles, recovery days and long, steady efforts when your legs want to be looked after. The star of the show is the GlideRoll rocker, a curved sole that rolls you forward so each stride feels smooth rather than clunky, which matters a lot in a shoe this tall. At 292g it is not light, and it is not trying to be. This is a daily training shoe for runners who value a soft, planted, easy ride over pop or pace. If you like the idea of the same rockered comfort with even more foam, the Hoka Bondi 9 is the obvious rival. We rate the Ghost Max 4 as one of the easiest max-cushion trainers to just put on and run.

The Brooks Glycerin 21 is a max-cushion daily training shoe built for one job: making your everyday miles feel soft, calm and comfortable. This is the plush end of the Brooks range, a neutral running shoe that leans into cushioning rather than speed. At 280g it is not light, and it will not snap you through a fast finish, but that was never the point. What you get is a deep, forgiving underfoot feel that holds up well over long easy runs and recovery days, and a 10mm drop that suits heel and midfoot strikers alike. We rate it as a dependable cruiser for runners who want protection and a smooth, quiet ride over anything sharp or racy. If the £165 price gives you pause, the cheaper Brooks Ghost 16 covers similar daily duty with a touch less plush. But if soft comfort is what you are after, the Glycerin delivers it honestly.