The Flexible Filly Line by Thinline – Rethinking Product Designs Leads to Innovation in Lightness and Flexibility

ThinLine Global introduces its new Flexible Filly product line – products designed with “out-of-the box thinking” to support and protect horses with minimal interference to their freedom.  The new products include a slow feeder muzzle that breaks the mold of traditional muzzles, two styles of horse boots lined with ThinLine and engineered for flexible, high-tech, impact protection, removable halter guards with ThinLine’s trademark foam technology, and yoga mats with knee and wrist helpers.

“The greatest mantra in horseback riding may well be, stay out of their way,” says ThinLine Global Founder, Elaine Lockhead Castelao. From this philosophy, the Flexible Filly product line came to be. Because horse owners all want to support and protect their horses, while still allowing them to be horses, ThinLine researched and developed the Flexible Filly line to help owners realize this goal.

The Flexible Filly products available starting February 2019 are:

  • A slow feeder muzzle that is very different from the typical heavy, hard, and “cage-like” apparatus. Redesigned from the ground up, the muzzle is lighter and less confining. Constructed of a pliable material that reduces the chances of the muzzle getting snagged, it is also soft on equine teeth and lips. The Flexible Filly Slow Feeder Muzzle is well ventilated and safe, rated to break just before your leather turnout halter.
  • Two styles of horse boots – Closed-Front Splint Boots and Air Shock Horse Boots. Both styles of boots are lined with ThinLine’s trademark wafer-thin, foam technology and are constructed with exteriors of flexible, high-tech, impact protection that are lightweight, tough, and dirt-resistant.
  • Halter guards made of ThinLine foam technology that prevent rubs on horse’s face or provide additional protection while trailering. Removable and fasten securely.
  • ThinLine yoga mat with two, ¼” knee and wrist supports made of ThinLine Plus. No-slip, exceptional cushioning for practicing yoga, sitting, or sleeping.

Look for the Flexible Filly line of products at or at select equestrian retailers.


ThinLine Global
4900 Hillsborough Road #300
Durham, NC  27705
Contact:  Elaine Lockhead Castelao, 919-680-6803


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