Take
a meter
of cloth
and measure the
lengths
of the
2
lap
around
the saddle
(one
front and
one behind)
Add
the previous measurement
from 5 to
10
cm
Choose the model
of cushion
comfort
straps
which
are
+ or
-
to the
extent
that you took
the saddle
(no
matter
if they
are longer)
Remember that
the straps
under the seat
can be superimposed
parallel
or
crossed