2.5 MM Foaming PVC 3 layers underlining WT. 410-440 GMS Latex Bladder with butyl valve
Top Grade Rubber Synthetic 4 layers underlining Official size as per IRB Specifications WT. 440-450 GMS High Air Retention Bladder
Top Grade Flourocent Rubber Synthetic 3 Layers Underlining Official size as per IRB specifications WT. 430-440 GMS Latex Bladder with butyl valve