SKU: 98845933139

J99 Flex Ultra Strength Plyometric Training Shoes, Gray/Black

Sale price$161.99 Regular price$179.99
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

J99 Flex Ultra Strength Plyometric Training Shoes, Gray/BlackHoopsKing TrainingTrain Explosive The Plyometric Shoe Built for Liftoff J99 Flex Ultra Strength plyometric shoes keep you on the balls of your feet and load the calves, building explosive jumping and sprinting power with a high traction outsole and shock absorbing midsole so you can train hard, longer. Add the J99 Flex $179. 99 29 reviewsForefoot platformHigh traction soleFast shipping Why It MattersExplosiveness Comes From the Calves and Forefoot

HoopsKing Training

Train Explosive — The Plyometric Shoe Built for Liftoff

J99 Flex Ultra Strength plyometric shoes keep you on the balls of your feet and load the calves, building explosive jumping and sprinting power — with a high-traction outsole and shock-absorbing midsole so you can train hard, longer.

★ 29 reviewsForefoot platformHigh-traction soleFast shipping
Why It Matters

Explosiveness Comes From the Calves and Forefoot

Flat training shoes let your heels do the work — the opposite of what builds a fast first step and a higher jump.

J99 Flex shifts the load onto the balls of your feet, so every drill trains the calf and forefoot strength that powers explosive movement.

What It Does

Built to Make You Better

Forefoot platform loads the calves

Builds explosive jump & sprint power

High-traction outsole for grip & stability

Shock-absorbing midsole saves your joints

Breathable for long sessions

Made for agility & plyometric work

Up Close

A Closer Look

The Details

Specs

Type
Plyometric training shoes
Color
Gray / Black
Use
Jump & agility training
Good Questions

FAQ

How should I use them?

Wear them for plyometric and agility training to build calf and forefoot strength — ease in, since they load those muscles hard.

How do they fit?

Check the product images for sizing; choose your normal athletic-shoe size.

How fast does it ship?

Most orders ship quickly with tracking emailed to you.

Customer Reviews

What Athletes Are Saying

Real feedback from players and coaches who use it.

Build Your Liftoff

Put explosive power under your feet every workout. Add the J99 Flex plyometric shoes today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 98845933139

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4.7 ★★★★★
Based on 27 reviews
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Product Reviews
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Verified Purchase
Rach C.
Boise, US
★★★★★ 5
Comfy and cute
Size: 3X, Color: Black
Perfect length. I normally wear a plus size 2X but I wanted it to be looser fitting so I got a 3X and it’s the exact fit I was looking for. The length hides my apron belly. The fabric doesn’t stick to me. Materiel is nice and lightweight. Hasn’t wrinkled, dryer didn’t shrink it, super stretchy. Perfect for an active lifestyle
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
H
Verified Purchase
H.C.
Los Angeles, US
★★★★★ 3
Nice fit, but tank top materials feel hot
Size: Medium, Color: Dark Grey Heather
I bought the "dark grey heather" tank. Pros: -comfy relaxed fit (not snug or tight) - armholes not too low - i like the crewneck (but it sits a tiny bit high) - shirt length is a good "normal" length (not short, and not too EXCESSIVELY long like other Amazon brand women's shirts in the past) - looks casual and nice - didn't shrink after machine wash and dry. Cons: - the WORST thing: material feels hot, and it's medium weight, not lightweight like the item description claims. Don't like the 6% ELASTANE, 38% MODAL in this fabric blend. Feels hot in humid hot Houston weather. (But I like the 56% pima cotton!) - the "heathering" (maybe because of the materials) feels like tiny fabric fibers are itching me and not comfortable, especially if the air conditioner is not running, - the hem has side slits and is slightly longer in the back than in the front.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
M
Verified Purchase
Melissa Downie
Alexandria, US
★★★★★ 5
Perfect fit and comfy
Size: Large, Color: Black
I love these shirts! They are soft and lightweight. They fit as they should. I have a black, periwinkle, dark green, and grey. Great tank for the money and perfect to exercise in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
M
Verified Purchase
Maya G
Waukegan, US
★★★★★ 5
Nice material
Size: Medium, Color: White
Soft . White is see though but other colors are nice and comfy for the summer. Reminds me of more upscale brands in terms of quality . Happy with this shirt
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Reviewed in the United States on May 22, 2026
M
Verified Purchase
Melody
Port Orchard, US
★★★★★ 5
Quality and comfort!!
Size: Large, Color: Deep Green
Beautiful. Very pretty. You can wear this casually or to go out to dinner. The fit was very good. I recommend after washing let it air dry. I was afraid of shrinkage. I bought several, so I can mix and match. The downside with this outfit is it does snag. So be careful.
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Reviewed in the United States on April 5, 2026

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