The ChemDefend 250 range of protective coveralls are constructed from a microporous polyethylene barrier film glued to the latest generation of spunbond polypropylene ( SBPP). The PP fibres are spun at a low dtex producing a high density of fine fibres per square metre, creating a lightweight and strong, but breathable material.The barrier and repellency to liquid chemicals and biological agents is excellent. This material is coated with an electrostatic dissipative layer. ChemDefend 250 range material is soft, quiet and drapable. The coverall is constructed to offer optimum body fit, with generous use of fabric in the underarms, chest and waist, allowing comfortable and unrestricted freedom of movement. The garment incorporates a number of key design features to assist in maximising protection, comfort and strength and to ease the donning and doffing process. The garment uses a sealed seam, bound with a barrier material to maximise the seam strength. This reduces any splitting or tearing in use and improves the liquid and particle barrier of the coverall. Additionally, all the elastication within the coverall is fully bound and enclosed, and combined with the outer film layer delivers a coverall with reduced linting of any fibre contaminant.