"Keen shoes are known for their durability and comfort, but the mid-height version is not suitable for all conditions. The laces can come undone easily and the yellow protrusion known as the ""heel lock"" can collect debris from the V-cut in the boot. The full boot version is a great option for those who need a waterproof shoe, but the yellow lugs can be difficult to remove. The shoes are stylish and have a secure fit, but may not be suitable for those who need a waterproof shoe."