TM 10-8415-209-10 TM 8415-10/2 Section II.  OPERATING UNDER USUAL CONDITIONS 2-2.  DONNING THE CHEMICAL PROTECTIVE UNDERWEAR (CPU). Table 2-2.  Size Prediction Chart for CPU UNDERSHIRT Chest Size Corresponding Shirt Size 31-32....................................................... 32 33-34....................................................... 34 35-36....................................................... 36 37-38....................................................... 38 3940 ........................................................ 40 4142 ........................................................ 42 43-44....................................................... 44 4546 ........................................................ 46 47-48....................................................... 48 2-8