belleville men's 390 trop hot weather combat boot, black - 10 r b belleville arm your feet designed after belleville’s most highly recognized boot, the iconic 390 des, the 390 trop is a hot weather boot that fits like your favorite running shoe. with an upper constructed of durable full-grain cowhide leather and abrasion resistant nylon, the 390 trop is not only tough but highly breathable too.