

| Spec | Supernova Prima 3 | Glycerin 23 |
|---|---|---|
| Best price now | £109.20 | £109.99 |
| 90-day low | £94.55 | £99.00 |
| 30-day average | £138.70 | £156.27 |
| RRP | £150.00 | £165.00 |
| Category | Daily | Max Cushion |
| Surface | Road | Road |
| Weight | 290g | 300g |
| Drop | 8mm | 8mm |
| Heel stack | 38mm | 38mm |
| Forefoot stack | 30mm | 30mm |
| Carbon plated | No | No |
| Stability | No | No |
| Review rating | — | — |
The Supernova Prima 3 is adidas' comfort-first daily training shoe, a max-cushioned road trainer built to soak up easy miles and keep you fresh over the long run. With a 38mm heel and 8mm drop it sits firmly in the plush, protective camp, and the Dreamstrike+ foam is what gives it that soft, forgiving landing. This is not a shoe chasing pace. At 290g it is on the heavier side for a daily trainer, so you feel it more as a mile-eater than a snappy one. What you get in return is a smooth, stable ride that holds up well as fatigue sets in, helped by the Support Rods that add a touch of structure without turning it into a stability shoe. We rate it as a straightforward everyday running shoe for runners who value cushioning and calm over speed. If you want more energy return for tempo days, the lighter Supernova Rise 3 is the more versatile sibling.
The Glycerin 23 is Brooks at its plushest: a max-cushion daily training shoe built for the soft, unhurried side of your week. This is not a shoe chasing a personal best. It is the one you reach for on recovery days, easy miles and long relaxed runs when you want your legs coddled rather than told to work. The DNA Tuned midsole is deep and forgiving, with a tall 38mm heel stack and a moderate 8mm drop that suits heel and midfoot strikers alike. At 300g it is not light, and it never pretends to be fast, so if you want a snappy tempo shoe look elsewhere. What you get instead is comfort you can rely on, mile after mile, in a neutral running shoe that feels like it was tuned for pure cruising. If you want the same plush ride with a touch of support, the Glycerin GTS 22 adds guide rails. We rate it as one of the most dependable soft daily trainers going.
A side-by-side comparison makes the trade-offs between two running shoes easy to see, but the right pick still depends on how you run. Weight and stack height shape the feel underfoot: a lighter shoe with a lower stack feels nimble and fast, while a heavier, taller stack gives a softer, more protective ride for long miles. Heel-to-toe drop changes where you feel the load, with lower drops asking more of the calves and Achilles.
The price figures update from the UK retailers we track daily. The best price now is the cheapest tracked price we can currently link to, the 90-day low shows how cheap the shoe has been recently, and the 30-day average tells you whether a price is a genuine drop or just the going rate. Coverage is partial rather than complete, so always confirm the final price and your size on the retailer site, and set a price alert on the model you want so we can email you the moment it drops.
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