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McDavid 421 Knee Support with stays

The McDavid™ 421 Knee Support provides moderate support helping to relieve symptoms and aid recovery from chondromalacia, patellar subluxation and tendonitis. The spring steel stays provide reinforced support. A padded buttress supports the patella, while the elastic hook and loop straps ensure outstanding fit. 


  • Latex-free neoprene thermal/compression
  • Exterior layer of nylon fabric for durability
  • Fits left or right
  • Content: 100% latex-free 4.8mm neoprene (CR) - exclusive of binding/straps/cover fabric


  • Chondromalacia
  • Patella subluxation
  • Tendonitis