Optimum Opti-lock™ Leakproof Shaker

Marsoni

M251S

$29.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Optimum Opti-lock™ Leakproof ShakerOptimum Nutrition Opti Lock Leakproof Shaker Patented Locking Lid System The Optimum Nutrition Opti Lock Leakproof Shaker is built for reliable, mess free mixing wherever you train. Developed in partnership with Promixx, it features a patented single direction sealing mechanism with an audible and tactile locking lid for guaranteed leak proof performance. With a removable snap fit agitator and domed base for optimal mixing, this shaker delivers

Easy Shipping

Quick Dispatch:

Your Optimum Opti-lock™ Leakproof Shaker orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Optimum Opti-lock™ Leakproof Shaker ships.

Need Help?
Questions about Optimum Opti-lock™ Leakproof Shaker, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Optimum Opti-lock™ Leakproof Shaker in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 18, 2026

Verified Purchase

Lucy Mejia

Belleville, US

★★★★★ 5

So will not write down your foot

Size: Medium, Color: (001) Black / Black / Castlerock

I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 6, 2026

Verified Purchase

Twins9

Houston, US

★★★★★ 5

Comfy and Stay Put

Size: Medium, Color: (002) Black / Black / Halo Gray

These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 16, 2026

Verified Purchase

swwkennyg

Port Orchard, US

★★★★★ 5

Perfect sucks

Size: Medium, Color: (001) Black / Black / Castlerock

Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 14, 2026

Verified Purchase

Monica Alzate

Dallas, US

★★★★★ 4

Amazing but quality changed

Size: Large, Color: (002) Black / Black / Halo Gray

Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on July 10, 2025