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Boulder, Colorado


Schooling and Show Apparel for Jumpers and Dressage Riders, Meticulously Tailored Equestrian Styles using Cutting-Edge Technologies Posh Performance!

Where we live?

Boulder, Colorado USA - Land of Great Skiing, Riding and Cycling. Our Ponies love the Mountain air and 300 plus days of sunshine!

Blending Posh with Performance, Mastermind Equestrian Apparel offers a generous helping of European tradition with Cutting Edge innovation and American Ingenuity. Imported and featuring Swiss Schoeller (R) Fabric Technologies, German Gutos Snaps and Fittings, and Genuine Leather with LYCRA (R) full seats to keep your Ride Elegant, Energized, Clean and Secure.

Lauren Sammis

Lauren Sammis

Lauren Sammis is a two time US team medalist having won team gold and individual silver at the Rio de Janeiro Pan Am games in 2007, as well as a USDF Gold, Silver and Bronze medalist.  She has trained with many top level Olympic equestrians over the years and translated that into many years of success on Sagacious HF who she trained to Grand Prix and competed on both the National and International level.  She is currently developing the highly talented Whitman to take to the next round of international competitions. 

Like all athletes at the top of their profession, Lauren has a strong patriotic competitiveness and her aspiration is to represent our country at the next Olympic Games.

Lauren is also the founder of Sammis Sales LLC, a business of training Dressage horses.  Lauren offers world-class dressage training, instruction and coaching through the Grand Prix level. 

And after 3 decades of riding and training there is no doubt that Lauren still has extraordinary passion for her profession, a necessary ingredient to excel in her sport.

A native of New Jersey where she resides currently and runs her training business, Lauren spends her winters in Wellington Florida where she trains and competes.
Learn more about Lauren at