[ denim shorts can be crafted with the following recipes

Player Recipe
Primary skill used: tailor(2)
Required skills: N/A
Time to complete: 20 minutes
Tools required:
> 1 tool with sewing quality of 1
> 1 tool with cutting quality of 1
Components required:
> 4x rag
> 10x thread OR 10x sinew OR 10x plant fiber OR 10x yarn
Byproducts:
(none)
--
This recipe can be found in the following books when tailor is at least the required level:
Sewing Techniques for Designers (level 3)
Sew What? Clothing! (level 3)

Autolearned
Player Recipe
Primary skill used: tailor(0)
Required skills: N/A
Time to complete: 20 minutes
Tools required:
> 1 tool with sewing quality of 1
> 1 tool with cutting quality of 1
Components required:
> 1x jeans
> 10x thread OR 10x sinew OR 10x plant fiber OR 10x yarn
Byproducts:
(none)