TM 10-8400-201-23 3-12.  REPAIR AND MAINTENANCE - Continued Table 3-5.  Jacket, Flyers', Cold Weather Sizing Instructions and Finished Measurements (in inches) SHORT REGULAR LONG Half Chest (see note #1 ) X-Small 21 21 21 Small 23 23 23 Medium 25 25 25 Large 27 27 27 X-Large 29 29 29 Back Length (see note #2) X-Small 21 5/8 22 5/8 23 5/8 Small 22 1/8 23 1/8 24 1/8 Medium 22 5/8 23 5/8 24 5/8 Large 23 1/8 24 1/8 25 1/8 X-Large 23 5/8 24 5/8 25 5/8 Sleeve Length (see note #3) 13 7/8 14 7/8 15 7/8 X-Small 13 7/8 14 7/8 15 7/8 Small 13 7/8 14 7/8 15 7/8 Medium 13 7/8 14 7/8 15 7/8 Large 13 7/8 14 7/8 15 7/8 X-Large 13 7/8 14 7/8 15 7/8 Note #1.  Half Chest - Jacket front closed, at base of armhole from folded edge to folded edge.  ±  3/4 in.  tolerance. Note #2.  Back Length - At center back, from collar joining seam to top of knit waistband.  ±  3/4 in.  tolerance. Note #3.  Sleeve Length - From armhole along underarm seam to top of cuff.  ±3/4 in.  tolerance. 3-19