I am just a great fan of these boots. In fact I have several pairs, many of the same color (dark grey) but also in sand (desert boots) and tan. They are very comfortable but I think a great, practical look too. 
 
 
 
 
 The Grover- Vegan.  They took their most comfortable, best selling style and replaced the leather uppers with a burnished course-weave canvas, and swapped our calf linings for a super-soft 6-ounce cotton canvas.  And though it is completely non-leather, you don't have to be a vegetarian to appreciate it's rugged good looks....And its light weight and breathable materials make it the perfect option for the hot summer months.   
 
 
 
 
 Like its leather-bound counterpart the Grover-Vegan is mounted on their Rambler last with a stitch-down desert boot construction and TPR rubber outsole for a comfy, flexible and slip-resistant ride. 
 
 
 
I hope you enjoy them as much as I do.