White lines on back pocket. The darkest indigo blue denim series. 15.7oz Darkest Indigo Blue Denim Jean, using super-dense 6s Zimbabwe cotton yarn . This model has soft comfort to wear created by character of "ZIMBABWE COTTON"and also has a heavy and tuff character like a original denim. It is called "Darkest Indigo Blue Denim" but it still keep un-dyed core part of yarn. So you can enjoy hard and deep shade abrasion. "ZIMBABWE COTTON" is long staple cotton, that's why possible to delivers sensitive detail abrasion ! Not as like ordinary hevy oz denim. ※Without "Skewing "and "Singing",Vintage taste in pure denim is used for this model, and One wash finish.