The best replacement for boat shoes is sneakers.

The best alternatives to boat shoes are rated as following:
★★★★★  sneakers
★★★★★  mocs
★★★★  camp mocs
★★★★  loafers
★★★★  blucher mocs
★★★  penny loafers
★★★  topsiders
★★  desert boots
★  espadrilles
★  deck shoes
  moccasins
  sperry

Your alternative for boat shoes is not listed? Suggest!
Speaking about boat shoes, one probably shouldn't forget about socks.

Other search terms related to boat shoes and their ratings are:
★★★★★ socks
★ chinos
★ or without socks
long pants
You have in mind a companion for boat shoes and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of boat shoes in all years. Click on graph for more.
boat shoes
sneakers
mocs