The new AXIS OFFSHORE PRO HAMMAR 150 MK2 has all the great features of the OFFSHORE PRO 150 MK2 plus the HAMMAR MA1 Hydrostatic inflation system. The HAMMAR system offers a unique operating system that requires water pressure activation. This is highly suited to anyone working in extremely wet conditions. ● Designed to suit all adults ● Velcro closure ● New 3D ergonomic design with a soft neoprene collar ● New HAMMAR MA1 Hydrostatic operating system (water pressure activation) with a window for visual of arming status ● 150 Newtons of buoyancy ● Reflective piping for night time visibility ● D Buckle fitted at back so optional crutch strap can be fitted ● AS4758.1 Approved Code Description Colour 600157 Offshore Pro Hammar 150 MK2 - Auto Black/Grey 601975 Hammar Recharge Kit - 33gm Gas Cylinder