Dive Rite TransPac harness sizing. Imperial in bold, metric underneath.
Short backplate
| Size | Step 2 measurement in · cm |
|---|---|
| S |
<26 <66 |
| M |
25–29 64–74 |
| L-SHORT |
27–31 69–79 |
| XL-SHORT |
29–33 74–84 |
Standard backplate
| Size | Step 2 measurement in · cm |
|---|---|
| L |
29–33 74–84 |
| XL |
31–35 79–89 |
| 2XL |
>34 >86 |
How Dive Rite measures
- Step 1: Determine whether you need a short or standard backplate. A. Measure from the small of the back up to the base of the neck. B. Use your measurement to determine which backplate you need. <19″ (48CM) = SHORT BACKPLATE. >19″ (48CM) = STANDARD BACKPLATE.
- Step 2: Determine the correct size. A. Measure from the small of the back (where you want your waist belt to ride), over the shoulder, to 1in (2.5cm) above the nipple line for men, or the bust line for women (this will be the termination point of the shoulder pad). B. Use this measurement to determine the correct size on the charts below. Use the chart that corresponds to the backplate size you determined in step 1.
From Dive Rite’s chart: Every size has a range of adjustability. Transpacs are shipped adjusted to approximately the center of these ranges and can be shortened or lengthened to accommodate anyone within the range. There is some overlap of the ranges. If you fall towards the edge of one size range, it is recommended to go up or down a size so that you are closer to the center of the range to allow for more adjustability.
Source: Dive Rite’s size chart.











