I am a casual kinda gal so I wear "dress jeans" all the time. Defined as dark dye, trouser cut and worn with heels. Of course flip flops and a tee shirt can totally ruin that "dress" look! Personally I think I look more appropriate than the ill-fitting jackets with mismatched slacks folks. But the dress codes do not allow for those subjective opinions, no jeans is NO jeans no matter how good they look.
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Helen