Page 358 - Anthropometry, Apparel Sizing and Design

Sizing and fit for pressure garments 351

different constructions of underwear (with few seams or seamless). From different
body characteristics, movements (squatting), or materials properties, the underwear
will cause uncomfortable/comfortable feelings appearing on the buttocks.
Sixth new measurement NT G was called for by various positions of underwear
length and bottom. Fig. 13.9 displays six kinds of men’s underwear with different bot-
tom lines due to heights and angles. There are some important points located on HL
and CrL:“a”on HL,“b” on underwear bottom, “c”on CrL.
The first case in Fig. 13.9A with the underwear bottom located upper CrL includes
different locations of point “b” (briefs and trunks), different bottom girth and slope,
and also a different length of the side seam. The second case in Fig. 13.9B with an
underwear bottom located below CrL represents the various underwear styles of
tight-fitting boxers (from short to long). Fig. 13.10A shows the possible positions
of bottom lines for the first and second cases, Fig. 13.10B is the relationship between
the angle and the average values of NT G , Fig. 13.10C is the side length measured from
natural waist level down to CrL, and Fig. 13.10D is the relation between horizontal
cross-section girth NT G and h T .
The one-variable linear equations for calculating new tight oblique girth and hor-
izontal girth NT G are

NT G ¼ 81:64 0:89 SL, (13.6)

NT G ¼ 0:54 h T +54:59, (13.7)
where NT G is new thigh girth measured below or above natural thigh level, cm; SL is
side seam length measured from the natural waist, cm; h T is range of NT G below CrL.
New classifications of lower male torso include new body measurements.
Table 13.6 shows the types of male bodies on two levels.
First level is based on W G and H G and defined the total sizes of lower torso visually
(small or large for slim or obese bodies). The first level has two stages. To identify the
first stage, the measurements H G and W G are needed. Based on H G , the body can be put
to A, B, C types in accordance with the intervals established: smaller than 89cm,

Fig. 13.9 Two cases of underwear
bottoms: (A) higher than CrL;
(B) lower than CrL.