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Founders Pack


  • Rash Guard

  • Strongman T-Shirt

  • Vintage T-Shirt

  • Founders Jacket

  • Gi Patch

Founders Pack


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. 

sizing charts

Rash Guard

SizeBody Length Chest WidthSleeve Length
Small28" (71 cm)22" (56 cm)35" (89 cm)
Medium30" (76 cm)24" (61 cm)36" (91 cm)
Large31" (79 cm)25" (64 cm)37" (94 cm)
X Large32" (81 cm)27" (69 cm)38" (97 cm)


Small28" (71 cm)18" (46 cm)
Medium29" (74 cm)20" (51 cm)
Large30" (76 cm)22" (56 cm)
X Large31" (79 cm)24" (61 cm)
XX Large

32" (81 cm)

26" (66 cm)

XXX Large

33" (84 cm)

28" (71 cm)

Founders Jacket

SizeBody Length (from hips)Chest Width (1" below arm hole)Sleeve Length
Small28" (71 cm)22" (56 cm)35" (89 cm)
Medium30" (76 cm)24" (61 cm)36" (91 cm)
Large31" (79 cm)25" (64 cm)37" (94 cm)
X Large32" (81 cm)27" (69 cm)38" (97 cm)
XX Large34" (86 cm)28" (71 cm)39" (99 cm)
XXX Large36" (91 cm)29" (74 cm)40" (102 cm)

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


Machine wash cold.Non-chlorine bleach, when needed.Tumble dry medium.

return info

If you have any issues, please visit Returns/Exchange Request Form and we'll work with you to make it right. 

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.