Ultra-Thin Thermal Insulation for Footwear

Y-Warm helps reduce heat loss in shoes and boots while minimizing the thickness of the insulation layer.

With its extremely low thermal conductivity, vapor permeability, and quick-drying properties, this material provides warmth and comfort within the limited space available for footwear insulation.

How Y-Warm Is Integrated into Footwear

Y-Warm is designed as an internal insulation layer within footwear, positioned between the upper and lining materials.


Depending on the footwear construction, it can be integrated through sewing, PUR lamination, or other suitable bonding processes.

Insulation Performance

Independent testing was conducted by a third-party testing agency commissioned by the client.


In comparative tests using footwear prototypes of the same construction, Y-Warm achieved thermal insulation performance comparable to the tested conventional material, with an insulation layer approximately one-quarter as thick and heavy.


These results demonstrate Y-Warm’s advantages in enabling lighter and thinner insulated footwear designs.

Recommended Layering

Y-Warm can be integrated into various footwear constructions depending on requirements for thermal insulation, water vapor permeability, and quick-drying performance.


Layer order: from outside to inside.


  1. Upper material + Y-Warm + lining

  2. Upper material + Y-Warm + fleece

  3. Upper material + Y-Warm + foam + lining

  4. Upper material + waterproof membrane + Y-Warm + lining

  5. Upper material + waterproof membrane + Y-Warm + foam + lining

Recommended Lamination Methods

PUR lamination is recommended for bonding Y-Warm to compatible footwear materials.


Alternatively, a low-temperature hot-melt adhesive web may be used. This process requires careful control of temperature, pressure, and processing time to minimize the risk of damaging Y-Warm’s porous structure and reducing its thermal insulation performance.

Processing Precautions

Avoid applying pressure at temperatures above 100 °C, as this may impair the porous structure’s ability to recover after compression.


Higher temperatures and pressures increase the risk of structural deformation and reduced thermal insulation performance.

Ultra-Lightweight

Even a 50-meter roll of Y-Warm can be easily lifted and carried with one hand.

Material-Efficient Thermal Insulation

In comparative footwear testing, the Y-Warm insulation layer weighed approximately 75% less than the conventional insulation material tested while delivering comparable thermal insulation performance.


This reduces the amount of insulation material needed, supporting lighter footwear designs and more efficient use of material resources.

Y-Warm Technology Hangtag

This hangtag indicates that the footwear features Y-Warm thermal insulation technology.

Y-Warm Woven Label

This woven label indicates that the footwear features Y-Warm thermal insulation technology.

Y-Warm Sample Display Pack

This display pack is attached to footwear featuring Y-Warm thermal insulation technology.


It contains a material sample, allowing consumers to see what Y-Warm looks like and identify the technology used in that footwear model.

Official Authorization

This certificate confirms that the brand is authorized to use Y-Warm® thermal insulation technology, helping consumers identify products incorporating genuine Y-Warm material.


The technology is protected by patents in multiple countries, safeguarding the associated intellectual property rights.







Request Sample

Statement

Copyright © 2021-2026 Y-Warm