Saucony Boston Endorphin Speed 5
The Saucony Boston Endorphin Speed 5 (S21007-403) released Monday, April 13, 2026 at 10:00 AM ET for $175 retail. It's in stock at 2 of the 3 retailers Just Drops tracks.
Lowest resale ask: $189 on GOAT (Nov 7, 2026)
Style code: S21007-403 · Release date: April 13, 2026 at 10:00 AM ET · Retail: $175 · Availability: Available now
Source: the Saucony site · listed Apr 14, 2026 · date unchanged · stores checked Nov 7, 5:23 AM ET
Where to buy: GOAT · Tracked at 3 retailers
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