Why we made this: 

Empowering riders to make every ride their personal best. This elegantly designed show coat provides the ultimate freedom of movement, while air flows through the open weave to maximize breathability and comfort.

• Textured, “no-see” Aero Mesh fabric provides lightweight, flattering coverage while allowing air to flow through, providing superior breathability to help keep you cool in the show ring
• Four-way stretch moves with you
• Designed in a feminine silhouette with professional, show-ready style
• Fits and flatters a wide range of body shapes and sizes
• Detailed with a crisp collar, 3-button front closure, and faux front pockets
• Hidden front zip under buttons helps coat lay flat with no pucker
• Hidden eyelet at the waist to hold number card strings
• Low-profile, internal pocket
• Comes with two sets of exchangeable buttons; choose from enamel logo buttons or more subtle tone on tone matte logo buttons 
• Classic double-vent back
• Machine washable and quick-drying

Sizing,

The size chart is a general  guide,

I wear the XL I consider myself an Aussie 18, my measurements are;

Bust 114cm, waist 107cm and hips 125cm.

As you can see from the chart I am a little more than what the chart says for XL however I feel the XL is the best fit for me as the 1X is too baggy.

I hope that helps you decide what size is best for you.

Happy Riding!