Current Market Product

Power Laces – The Self Tying Shoe Lace:

Problems: 

 Power lace is quite expensive

Bulky 

The button/things inside gives trouble to the user when spoilt.

Velcro Straps on shoes:

Strengths: 

• Helps children that does not know how to tie shoelace
• Tightens, loosens shoes
• Easy wearing/removal
• Quicker than tying a shoelace
• Popular for medical reasons, difficulty bending down, etc.

Weaknesses:

• Velcro can stuck unwanted materials in it ( removing them is a messy task )
• Does not have the "classic look" (adults hardly wear those shoes)
• Loud sounds produced when unstrapping.
• Velcro might lose its stickiness.
• Softening of plastics.

Lace-amatic: Shoe Lace Tightener:

Strengths:
 Fast lace tightening, instant knotting & quick shoe removal


Problem:
It might drop out if its due to the mischief of friends as they still can pull the knot.
Knot might untwist if mechanism is faulty over time.

Quick Snap - Boot fasteners:

Problem: 

It is rather troublesome to fasten many tighteners, as every cross between shoelaces must have a tightener.

Nathan Velocity Laces:

Problems: 

There will still be some string that are not in used, even if you tuck it in like in the picture, it still might drop and you might still trip and fall.

Moreover, it does not look nice with two strings budging out.