
| Spec | Adizero Boston 13 | Noosa Tri 16 |
|---|---|---|
| Best price now | £70.00 | £80.99 |
| 90-day low | £63.00 | £69.00 |
| 30-day average | £120.22 | £101.43 |
| RRP | £140.00 | £140.00 |
| Category | Tempo | Tempo |
| Surface | Road | Road |
| Weight | 254g | 215g |
| Drop | 6mm | 5mm |
| Heel stack | 34.3mm | 34.5mm |
| Forefoot stack | 28.3mm | 29.5mm |
| Carbon plated | No | No |
| Stability | No | No |
| Review rating | — | — |
The Adizero Boston 13 is adidas at its most versatile: a firm, fast daily training shoe built to handle tempo work, threshold sessions and steady miles in one pair. It is not a race shoe and it is not a soft cruiser. It sits in the middle, the workhorse you reach for when the session asks for pace but you still want a shoe that lasts. At 254g it is on the heavier side for a tempo running shoe, and you feel that weight on truly easy days, but the trade is a platform with real durability and a planted, controlled ride. The internal rod system keeps the forefoot snappy and stiff, so when you push the pace the shoe pushes back. Compared with the lighter, livelier Adizero EVO SL, the Boston is the more rugged, do-everything option. If you want one shoe to carry your whole week, this is a strong pick.
The Noosa Tri 16 is Asics at its most playful: a light, lively tempo running shoe with triathlon roots and a deliberately loud look. At 215g with a low 5mm drop, it sits in that sweet spot between a daily trainer and a racer, the kind of shoe you reach for when an easy run turns into a fartlek and you want your feet to feel quick. There is no carbon plate here, so do not expect supershoe propulsion. What you get instead is honest, connected speed: a firm, responsive ride that rewards a forefoot or midfoot strike and turns over fast. The tri heritage shows in details built for racking transitions and shrugging off water, which also make it a genuinely fun stripped-back trainer. We rate it as a speed-day shoe for runners who already have a cushioned daily trainer and want something snappier for tempo work, strides and shorter races. It is not a do-it-all shoe, and it is not trying to be.
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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