How to determine belt size<br>Wear pants that fit well. Put on a pair of jeans or pants that you will wear frequently with a belt. These pants should not be too loose or too tight so that you will be able to get an accurate measurement of your waist.
According to the instructions, to determine belt size, put on a pair of jeans that are not too tight, but ones that are just a few sizes loose, and get an accurate measurement of your waist. 
The instructions in the statement say to put on a pair of jeans that fit, not ones that are a few sizes loose. 
( z1 say :ARG0 ( z2 instruction ) :ARG1 ( z3 and :op ( z4 put-on :mxde imperative :ARG0 ( z5 you ) :ARG1 ( z6 pair :quant 1 :cxnsistof ( z7 jeans :ARG1-of ( z8 tight :ARG2-of ( z9 have-degree :polarity - :ARG1 z6 :ARG3 ( z10 too ) :ARG1-of ( z11 contrast :ARG2 ( z12 jeans :ARG1-of ( z13 loose :mod ( z14 size :quant ( z15 few :mod ( z16 just ) ) ) ) ) ) ) ) ) ) ) ) :op ( z17 measure :mxde imperative :ARG0 z5 :ARG1 ( z18 waist :part-of z5 ) :mod ( z19 accurate ) ) :purpose ( z20 determine :ARG0 z5 :ARG1 ( z21 size :mod ( z22 belt ) ) ) )