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Performance Short

built in protection without the need for an additional outer short.

  • Combines the exceptional groin protection guaranteed by Diamond MMA products with a proprietary double-layered fabric meant to be worn as an outer short

  • Combines the exceptional groin protection guaranteed by Diamond MMA products with a proprietary double-layered fabric meant to be worn as an outer short

  • Ditch the multiple layers and get the one product that will allow you to stay fully protected through training and competition

  • Features a thicker, more durable drawstring and improved waistband


Performance Short
Performance ShortPerformance ShortPerformance Short


We're confident we design and sell the very best groin protection available at any price, and we want you to share our confidence! That's why we back every sale with a 100% satisfaction guarantee.

If you don't like the product, if it just doesn't work for you, if it doesn't fit, contact usand we'll make it right. 

watch the system in action below:

  • What makes Diamond MMA's system so much better?

Protection You Can Trust

Backed by a 100% satisfaction guarantee, you can trust that if you don't love it, you'll be taken care of. Plus, if you don't trust us you should trust the hundreds of positive reviews all over the web and professional athletes wearing and talking about our products. 

Superior Materials

We've literally spent years engineering our products and are still tweaking our designs to ensure our compression short is always the best it can be and the best on the market. We are constantly sourcing materials to ensure our products are made with the best materials out there.

Focus on Comfort

Obviously protection matters. But so does your comfort. The reason so many guys don't wear a cup system is because it's simply uncomfortable. We designed a cup and corresponding short system that is so comfortable you'll forget you're wearing it.

Designed By Experts

Designed by a team of award winning designers, Stanford University engineers, and most importantly, athletes practicing in the sport testing the products day in and day out. 

sizing chart

SizeWaist Size
Youth Medium23-24" (65-68.5 cm)
Youth Large25-26" (68.5-72 cm)
Youth X Large26-29" (72-75 cm)
Small27-30" (68-76 cm)
Medium31-34" (77-86 cm)
Large35-38" (87-96 cm)
X Large39-42" (97-106 cm)
XX Large43-48" (107-122 cm)

For any additional questions, please feel free to call us at 888-959-1662 or email us at info@diamondmma.com


Your shorts can be machine washed, but should be hung dry. Your cup can be left inside the cup pocket while washing. 

return info

If you have any issues, please contact us at info@diamondmma.com and we'll work with you to make it right. 
For any additional questions, please feel free to call us at 888-959-1662 or email us at info@diamondmma.com.

Shipping Info

You can view a shipping estimate by adding items to your cart and going to the cart page, you will see all available shipping options and pricing there. 

Orders are shipped from our warehouse in Northbrook, IL. 

 There can be a 2-3 business day handling time before orders ship, so please plan accordingly when choosing your shipping method. 

Carrier calculated shipping rates are available at checkout which enable you to choose the speed you need to receive your product in. 

 A Note On International Shipments:

We try to make sure all duties and fees are paid from our end but some countries impose additional duties on product at the time of import. You are responsible for all additional taxes and duties levied on your order once it arrives in your country. 

Please note that first class international shipping does not have a guaranteed delivery time frame. Depending on the location shipments can take up to 4-6 weeks and tracking the shipment can have limited abilites. 

Customer Reviews

Based on 8 reviews
Great product!

Right out of the box you can tell that the shorts and cup are high quality. The cup is comfortable to wear during sparring. Having the jock strap sewn into the shorts is very convenient. Definitely recommend. If the performance shorts were made with different colors I would definitely buy additional pairs.

This company!!!

After accidentally ordering the wrong size, Stephanie with customer service was extra helpful. Helped me exchange them without missing a beat.
Also, I still managed to order something different than intended BUT my husband likes them even more than the original product I was planning to purchase. He says they’re so comfortable and loves the length of them.

Durable and comfortable

These are quickly becoming my favorite all-workout shorts. I wear them for everything including running. Very well made and very comfortable.

Great fit

The performance shorts are a great fit for workouts in the weight room and running. I will try them for biking when all this smoke clears in Northern California. They are secure enough to where I can use them for umpiring and playing hard ball. 💯% recommend. RD

Performance Short Review

These shorts are easily the most comfortable and versatile shorts ever. I've used them for No-Gi Jiu Jitsu and for functional fitness workouts. They moved effortlessly with my body and didn't need readjustment at all. They have instantly become my most favorite pair of shorts.