Saucony Endorphin Speed vs Saucony Kinvara
Comparing the current Endorphin Speed 6 and Kinvara 16. Specs are men's US 9.
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THE SHORT ANSWER
Drop is the real difference: 4 mm on the Kinvara 16 against 8 mm on the Endorphin Speed 6. Coming off the Endorphin Speed 6, the Kinvara 16 loads your calves and Achilles harder for the first couple of weeks. Both sit in the same role (tempo). The Kinvara 16 lists $45 lower.
- Saucony Endorphin Speed 6Stock unverifiedMen's at AmazonWomen's
- Saucony Kinvara 16Men's at AmazonWomen's
Availability last checked Jul 31, 2026. Prices and stock change without notice.
Every spec, side by side
| Spec | Endorphin Speed 6 | Kinvara 16 |
|---|---|---|
| FIT AND WEIGHT | ||
| Weight | 7.8 oz | 7 oz |
| Widths | D, 2E | D |
| Upper | Lightweight engineered mesh | Redesigned breathable engineered mesh |
| CUSHIONING GEOMETRY | ||
| Heel stack | 39 mm | 29 mm |
| Forefoot stack | 31 mm | 25 mm |
| Drop | 8 mm | 4 mm |
| MATERIALS | ||
| Midsole | PWRRUN PBX foam | PWRRUN foam |
| Plate | Redesigned nylon plate | None |
| VALUE | ||
| List price at launch | $175 | $130 |
Which line changes its ride more often?
The Endorphin Speed has done it 3 times in 6 versions, most recently with the Endorphin Speed 6 in 2026, and the Kinvara has done it once in 6 versions, most recently with the Kinvara 14 in 2023. If you want a shoe you can rebuy without reading a review first, the Kinvara has the steadier record.
Buy the Endorphin Speed 6
Stock unverifiedAvailability last checked Jul 31, 2026.
Buy the Kinvara 16
Stocked at AmazonAvailability last checked Jul 30, 2026.
Chasing a specific older version rather than choosing between the current two? The Saucony Endorphin Speed lineage and the Saucony Kinvara lineage track every version and what changed in each update.
Questions runners ask
- Is the Saucony Endorphin Speed or the Saucony Kinvara lighter?
- The Kinvara 16, by 0.8 oz in a men's US 9 (7 oz against 7.8 oz).
- Can I switch from the Saucony Endorphin Speed to the Saucony Kinvara?
- Yes, but ease into it. The drop moves 4 mm (8 mm on the Endorphin Speed 6, 4 mm on the Kinvara 16), which changes where your foot loads at landing. Give it two weeks of easy running before a hard session.
- Which is more cushioned, the Saucony Endorphin Speed or the Saucony Kinvara?
- The Endorphin Speed 6, on stack height: 39 mm under the heel against 29 mm. Stack is not the whole story, though; the foams differ too.
- Which comes in more widths?
- The Endorphin Speed 6. The Endorphin Speed 6 runs in D, 2E for men's sizes; the Kinvara 16 runs in D.
- Which costs more, the Saucony Endorphin Speed or the Saucony Kinvara?
- The Endorphin Speed 6, by $45 at list ($175 against $130). That gap narrows once either one gets a successor.
Updated July 31, 2026.