Getting your camping gear into the backcountry over sometimes rough hiking trails isn't easy no matter how it is done. Wheelpacking is easier than backpacking but it still requires some effort on the part of the user. Comfort will be important and comfort relates to fit. Just as other outdoor gear such as hiking boots, sleeping bags and clothing is selected based on fit, it is no less important to make sure Wheelpacker will fit also.

Wheelpacker's user interface is designed to fit male or female users from 5'2" to 6'6" tall and with a loose hip circumference (over clothing) of approximately 32" to 56". Although there are exceptions and Wheelpacker isn't hard to use, it is assumed that those shorter than 5'2" and/or with a hip measurement smaller than 32" would be children or otherwise unlikely Wheelpacker users. There is more latitude for fit beyond the larger size extremes.