M2 Medical Mattress High risk medium mattress Castellated Support Surface The castellated support surface allows each square to move to body contour. Module cutting also allows for horizontal anti-shear movement. Two Layer Construction One piece U shape firm XP Support Foam base and side wall support with medium feel with full module cut comfort layer foam inlay. Designed especially to reduce roll-out risk and bed falls. Zerotec Cover Zerotec fabric is a medical barrier fabric that has high elasticity in every direction which reduces shear on pressure redistribution surfaces. It is waterproof and wipeable but has microporous breathable properties. This cover has welded seams and waterfall flaps for fluid control. SlideSkin Anti-Shear The unique composition of SlideSkin technology reduces shear with a second membrane. This enables the cover to move or slide with the users movements. Firm Edge Support Prevents falls and roll-outs from the mattress and providing support for transfers. This rating is based on our average peak pressure of <22.1mmHg. Icare risk category ratings are based on average peak pressure, Therapist recommendation, case studies, industry comparison and the Waterlow scale.