AquaCast Hipster Pantaloon Cast Liners, Box of 1 (Size2 / Size8)AquaCast Hipster Pantaloon Liners are one piece, waterproof, breathable liners made with expanded polytetrafluoroethylene (ePTFE) that create a barrier between the skin and cast padding used in hip and shoulder spica casts. Hipster Pantaloon Liners are available in pediatric sizes with a new improved design. Paediatric Size 2: suitable for ages 0 9 months with a waist size 18inches 45. 72cm Paediatric Size 8: suitable for ages >36 months with a waist