"粗斜条棉布" can be translated as "coarse twill cotton fabric" or "heavy twill cotton cloth".
"Coarse" or "heavy" conveys the idea of "粗" (coarse or thick texture).
"Twill" refers to the diagonal weave pattern characteristic of twill fabrics (斜条/斜纹).
"Cotton fabric" or "cotton cloth" specifies the material.
If emphasizing the casual/utilitarian nature, "rugged twill cotton" could also work.
For a more technical or precise term (e.g., in textile industry contexts), "coarse-weave twill cotton" might be used.
Choose based on context (e.g., general use vs. technical specifications).