Stretch Denim import inquiry from United Kingdom

we are a fashion company based in the UK currently looking for a long term supplier of stretch denim. The composition we need is:

Composition: 77.5% Cotton, 20% Polyester and 2.5% Elastane
Weight: 11oz
Colours: washed/light blue and washed black

Denim has to be soft and high quality.
If you need any more information from us please let me know.
If you can supply this fabric or similar we would like to discuss some samples with you.