Olympus 6 vs Ultra Glide 4

The Altra Olympus 6 is a maximum cushioned trail running shoe built for going long and staying comfortable when the miles pile up. It pairs a deep, plush platform with Altra's signature zero drop geometry, so your heel and forefoot sit at the same height and your foot spreads naturally over rough ground. At 345g it is a substantial shoe, and you notice the weight on faster efforts, but that heft buys you real protection underfoot on rocky, root strewn trails. This is an ultra shoe first and foremost. It is happiest on all day adventures, long training loops and technical terrain where a wide, grippy outsole and a stack of soft foam keep your legs fresher for longer. If you want a lighter, nimbler trail tool the Altra Lone Peak 9 or the Hoka Speedgoat 7 make more sense. For runners who prize comfort and a natural foot position over speed, we rate the Olympus 6 highly.

The Ultra Glide 4 is Salomon's soft, high-stack trail runner built for one thing above all: keeping your legs fresh over long, rolling miles. With 38.6mm of heel stack and a moderate 7.5mm drop, it sits firmly in the cushioned trail shoe camp, closer to a plush daily trail cruiser than a nimble racer. At 295g it is not the lightest option out there, but that weight buys you a genuinely comfortable, protective ride that soaks up rocky, uneven ground on the way home from a big day out. This is a shoe for runners who value comfort and easy-going stability over sharp, aggressive handling. It thrives on smoother, non-technical trails, gravel, forest paths and long ultra efforts where fatigue is the enemy. If you want a running shoe that lets you switch off and just log the distance, the Ultra Glide 4 makes a strong case at its £130 price.