The boot shell, TPU gaiter and back strap are made of thermoplastic polyurethane (TPU), a material that is often called a hybrid between plastic and rubber. TPU offers the flexibility of rubber, but with the strength and durability of plastic.

Neoprene gaiters are made of 5mm thick neoprene with laminated fabric on both sides.

Rivets are made of steel.

Flex Pony Boot 90

Neoprene gaiter colour
  • Flex Hoof Boots are available in 13 sizes suitable from miniature ponies to horses. FlexPony
    boots are sizes 80-105, and FlexHorse boots are sizes 110-150.


    Flex Boot Size

    Boot Inside

    width mm

    Boot inside

    length mm

    80 80 90
    85 85 95
    90 90 100
    95 95 105
    100 100 110
    105 105 115
    110 110 120
    115 115 125
    120 120 130
    125 125 135
    130 130 140
    135 coming in '22 135 145
    140 140 150
    145 coming in '22 145 155
    150 155 160


    Flex Boots fit hooves that are +/- 5mm of the listed width measurements, and no longer thanthe listed length measurement.

    Hoof measurements should be taken after a fresh trim. FlexBoots fit a variety of different hoof shapes provided the hoof is maintained in its anatomicallycorrect shape. This generally means small maintenance trims at 1-2 week intervals. Flex Boots recommend that the owner should learn how to maintain their horse’s feet between professional visits. By doing so, you can ensure that the horse moves comfortably at all times with correct and well-functioning hooves, and your horse can enjoy these barefoot shoes of the horse world for as long as possible.

    Flex Boots have created an online course to teach ownershow to carry out the maintenance trim, details can be found here:


    Flex Boots are also available in custom sizes. For horses with thinner or thicker legs, the FlexCustom Boots come with one size smaller or larger TPU gaiters and neoprene gaiters. Please contact us to order custom boots.