My EpicMilitaria roughouts arrived today. They fit well, I'll probably put in an extra sole for better support, but I do that with all my shoes. The quality seems great, the color looks nice - not sure if I would like to darken it by making it impermeable.
Compared to the service boots the roughouts are much lighter, softer and easier to wear, they're not so stiff and high. I'm glad I went for them! Thanks for all the advice.
Alternatively, I have some shoe-care sprays that make them water-proof. Would you recommend using it on these?