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We measure the size of our NDM 1.0 & 1.2 harness by using the "Chest Circumference" measurement. It's very easy to check your measurement and match it to the size of each pack. You simply measure 360 degrees around your chest under your breast (See picture for reference).
HOW DO I USE THE HARNESS?
When you set up your product for the first time the harness will be set on the outer size loop option (the size loops are located where the stretch connect to the backpack). If a smaller size is needed make sure to use the inner size loop. After checking the size loop setting you start by using the horizontal velcro straps. Simply grab the velcro strap on both sides at the same time, breathe in and set the strap where it fits.
Step 2: After setting the horizontal velcro straps you might have a perfect fit already. If you're for example a women with a larger chest or use a chest protector you might also need to change the vertical velcrop straps. If that's needed simply grab the velcro straps and set them at a goog lenght. For women we recommend using these straps at a lower strap setting. We also recommend placing the straps underneath the breast for better comfort for women.