The Saucony Endorphin Speed is a high-performance running shoe beloved by athletes for its responsive ride and lightweight design. But even the best running shoe won’t feel right—or perform as intended—if the sizing is off. In this guide, we’ll break down everything you need to know to find your perfect fit in the Saucony Endorphin Speed, from sizing tips to how it compares to other brands.
Why Fit Matters in Performance Running Shoes
Getting the right size isn’t just about comfort—it’s about injury prevention, stride efficiency, and foot support. A shoe that’s too small can cause blisters or toenail damage, while a shoe that’s too big can lead to slipping, instability, and overuse injuries.
Does the Saucony Endorphin Speed Fit True to Size?
For most runners, the Saucony Endorphin Speed fits true to size, but there are a few key details to keep in mind:
- Toe box: Slightly snug but flexible thanks to engineered mesh.
- Midfoot and heel: Secure and performance-oriented, with a sock-like feel.
- Length: Most wearers find the length consistent with their usual running shoe size.
- Width: Generally designed for standard-width feet, but available in wide sizes in some models.
Saucony Sizing Compared to Other Brands
If you’re switching from another popular running shoe brand, here’s how Saucony sizing typically compares:
| Brand | Saucony Equivalent |
|---|---|
| Nike | Similar, but Saucony may feel more snug in the midfoot. |
| Brooks | Comparable in length and fit. |
| ASICS | Slightly more room in ASICS toe boxes. |
| HOKA ONE ONE | HOKA may feel roomier, especially in toe area. |
Tip: If you’re used to a roomier toe box (like in Altra or HOKA), consider trying a half-size up in Saucony or checking for wide options.
How to Measure Your Feet for Saucony Shoes
To find your ideal size:
- Measure at the end of the day when your feet are most swollen.
- Stand while measuring to get an accurate reading of your foot length and width.
- Use a ruler or Brannock device and measure from heel to the tip of your longest toe.
- Add about 0.5 inch (1 thumb width) of extra space for running shoes to accommodate swelling and toe splay.
Signs You’ve Chosen the Wrong Size
- Toes are pressing against the front = too small
- Heel slippage or a loose midfoot = too big
- Numbness, tingling, or cramping = sizing or width issue
- Frequent blisters = poor fit or improper sock/shoe combo
Tips for Trying on the Endorphin Speed
- Wear the socks you plan to run in. Thicker socks can affect fit.
- Walk and jog around. Make sure there’s no heel lift and your toes can move.
- Test both feet. Most people have one foot slightly larger than the other—fit for the larger foot.
- Break them in gradually. Though the Endorphin Speed doesn’t need much break-in time, try shorter runs first.
When to Choose Wide Sizing
Saucony offers wide (2E for men, D for women) in some Endorphin Speed models. Consider wide sizing if:
- You consistently experience tightness in the forefoot
- Your foot measures wide using a Brannock device
- You have bunions or high insteps
Final Thoughts: Get the Most from Your Endorphin Speed
Getting the correct size in the Saucony Endorphin Speed maximizes comfort, reduces injury risk, and helps you enjoy every mile. While the shoe fits true to size for many, paying attention to personal foot shape and brand comparisons can help you nail the perfect fit. If in doubt, try before you buy—or order from a retailer with a good return policy.
With the right size, the Saucony Endorphin Speed becomes not just a shoe, but a training partner that propels you forward.
