| Abbreviation | Definition |
|---|---|
| HSS | Horizontal Stretch or Shrink |
| HST | Half Square Triangle |
| HTF | High Tech Fiber |
| HTTL | Head To Toe Leather |
| HTWP | Height to weight Proportional |
| HUGS | Hats, Underwear, Gloves, and Socks |
| HUR | Have umbrella ready |
| HVSV | High Visibility Safety Vest |
| ICH | Indigo Cat Hat |
| ICWG | Intermediate Cold-Wet Glove |
| IDBG | Idol Ball Gown |
| IDC | Institute of Draped Clothes |
| IGAF | I Give A F*** |
| IPFU | Improved Physical Fitness Uniform |
| IROC | Iron Removal Odor Control |
| ISBZ | Island Breeze tropical Shirt |
| IUS | Involuntary Uniform Syndrome |
| IWB | Inside WaistBand |
| IWS | International Wool Standard |
| JA | Jersey Away |