DescriptionAnkle strains and sprains can impair athletic performance and daily activities and may require surgical treatment in severe cases. The AM-OSS-05/CCA ankle brace by 4sport combines a low-profile, laced construction with BOA® Fit System and two lateral anatomic-shaped splints to deliver controlled stabilization while fitting into athletic footwear. The product uses breathable, spacer and elastic technical fabrics for ventilation and support; spiral dynamic straps enable correction or maintenance of inversion/eversion.
Product featuresThe AM-OSS-05/CCA permits maintenance and correction of the foot in inversion or eversion. Two elastic spiral dynamic straps allow progressive adjustment: tightening the medial strap increases correction of inversion, while tightening the lateral strap promotes and maintains eversion. Standard strap tension holds the foot in a neutral position.
Purpose of use- ankle strains or sprains
- ankle dislocation
- protection after cast immobilization (post-fracture, rupture, sprain)
- chronic ankle instability
- acute or chronic ankle injury
- preventive use in sports
SizesSize | Heel circumference | How to measure
S | 27-30 cm (10.6"-11.8") | Measure heel circumference around the heel
M | 30-33 cm (12"-13") | Measure heel circumference around the heel
L | 33-36 cm (13.2"-14.2") | Measure heel circumference around the heel
XL | 36-39 cm (14.4"-15.4") | Measure heel circumference around the heel
Total height21 cm (8.3")
Materials and technologyActiveSpace™: spacer polyamide 3D lamination with high skin ventilation, lightweight two-layer construction; non-elastic to improve stabilization, low moisture absorption, waterproof.
AeroSpace II™: distance elastic 3D knitted fabric with two facings and interlacing; polyester and spandex blend for strength and flexibility; external self-gripping layer for easy adjustment; low weight and high breathability, openwork structure for sweat drainage and airflow; reduces load on orthopedic splints and mounted elements.
AeroSpace™: new-generation 3D knitted fabric with high breathability and elasticity properties.
AirRubber III™: unidirectional elasticity (lengthwise stretch only) improving compression; allows airflow between braids; provides gentle skin massage under compression; skin-friendly.
BOA® Fit System: dial-and-lace micro-adjustable closure for fast, precise fitting integrated to tailor the brace around the ankle.
Setting up / AdjustmentThe BOA® Fit System dial provides micro-adjustments to conform to various ankle anatomies. Two elastic spiral dynamic straps enable controlled correction or maintenance of inversion/eversion by adjusting medial or lateral strap tension respectively.
Technical specifications- Brand: 4sport
- Code / Model: AM-OSS-05/CCA
- Trade name: FOOT ORTHOSIS
- Universal side: suitable for right and left leg
- Lateral anatomic-shaped splints for stabilization
- Low profile design — fits athletic shoes
- Laced construction with BOA® Fit System
- Spiral dynamic straps (figure-8 strap functionality)
- Materials: ActiveSpace™, AeroSpace II™, AeroSpace™, AirRubber III™
- Technologies: BOA® Fit System, CCA system, ankle joint wire stiffening available
- Latex-free
- Recommended by specialists
- Total product height: 21 cm (8.3")
- Available sizes: S (27-30 cm), M (30-33 cm), L (33-36 cm), XL (36-39 cm) — heel circumference measured around the heel