OneShoe Toddler footwear

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• OneShoe is a shoe for toddlers (12-24 months) that can span US sizes 4.5C to 7C, cutting down on waste and how many pairs of shoes a guardian would need to buy
• My team researched, developed, and tested the OneShoe for over 7 months, looking into materials, composition, and user needs
• Team OneShoe won the William K Gemmill Memorial Prize for creativity at the 2023 University of Pennsylvania  Mechancial Engineering Senior Design Day Competition

• OneShoe is looking into patenting this product in the coming months

Toddlers grow very quickly and their feet are no exception. Toddlers tend to grow out of a pair of shoes every three months, putting a significant financial burden on their guardians, who typically spend $35 - 50 per pair of shoes. Adults with toddlers with two differently sized feet or who wear foot braces experience the additional challenge of finding solutions to these needs. Based on a survey with 68 respondents, nearly half of guardians purchase over six pairs of shoes for their child between the ages of one to three.

We propose OneShoe, a shoe that grows from US sizes 4C to 7C, intended for children between the ages of 12 to 24 months. The shoe consists of 3 segments: The outsole, insole, and the upper which were made with a blend of fabrics and plastics which were researched and tested to be well within the standards of shoe design. Two velcro straps on either side of the sole allow for size adjustments. 

Our adult stakeholders will benefit from the reduced cost (spending 66% less of what is typically spent over the target growing period) and reduced waste (producing 5.5kg less in waste over the target growing period). Our child stakeholders will enjoy a safe, comfortable, and long-lasting shoe that they’ll be familiar with as they begin to understand the world around them.
To validate our material selection, design choices, and manufacturing methods, we tested the shoe based on the following criteria:

• Upper sole adhesion
• Tensile strength, elongation, and tear strength for both upper and sole materials
• Coefficient of friction for the sole component
• Compression energy for the sole component 

Team Oneshoe is comprised of team members Sarah Musa, Jake Russo, Miranda Stern, and Jessica Sui