- To Suit B-C Cup - Centre Front Knot Detail - Adjustable And Convertible Straps - Crystal Embellishment - ECONYL® sustainable fabric Designed in Australia, the Just Coasting Knot Front Triangle Bra radiates a kaleidoscope of pastel dreams, sunlit charm and coastal treasures inspired by boundless seaside reveries. Lovingly handcrafted, this knot front tri bra blends comfort with allure. Designed for B-C cups featuring a centre front knot, adjustable convertible straps and shimmering crystal embellishments for added sparkle.