BioSkin TriLok Ankle Brace


  • X-Small
  • Small
  • Medium
  • Large
  • X-Large



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The BioSkin TriLok provides maximum stability and precise adjustability to protect against ankle sprains and ankle injury. The TriLok's patented FootLok strap acts like a suspension bridge, supporting weak tendons and soft tissue in the foot to relieve the symptoms of Plantar Fasciitis and PTTD (fallen arches). Positioned laterally, the FootLok Strap supports and protects the lateral ligaments and the peroneal tendons. Positioned medially, the FootLok Strap supports the plantar fascia or the posterior tibial tendon. No other brace offers such versatility

  • Compressive base sleeve improves proprioception
  • Effective with almost any type of footwear or with no footwear at all
  • Allows normal range of motion


Sizing Chart
US Shoe Size
Size Description
X-Small Women 4-5.5
Small Men 5-6.5 / Women 6-7.5
Medium Men 7-9.5 / Women 8-11
Large Men 10-12.5 / Women 11.5-14
X-Large Men 13-16
  • Ankle Sprains - The TriLok provides protection and support to injuried ligaments to prevent further injury and reduce pain after a sprain. The FootLok Strap acts as an external ligament
  • PTTD - The TriLok's FootLok Strap pulls the arch up and restores the normal position of the foot. The TriLok is as effective as custom orthotics, but can be worn in almost any shoes or without shoes
  • Plantar Fasciitis - The TriLok's FootLok Strap lifts the arch to support the plantar fascia and prevent the arch from collapsing. It may also be worn as a light night splint to keep tension on the plantar fascia overnight