Under Armour Catchers Knee Supports... Maximize Your Performance! Take the field with comfort- Under Armour accessories deliver the high performance you need to play your best. Under Armour Catchers Knee Supports feature: Attach to leg guard harness to provide support Decreases excess strain on knee joints Easy to attach and adjust Multi-level foam construction provides necessary support and comfort Used by amateur through professional athletes Sold in 1-pair quantity Performance Behind The Plate!