Materials & specs

Footwear Materials & Specifications

A process-first reference for shoe soles, uppers, shoe insole and lining components. Compare materials and shortlist what fits your product, price and market.

UppersOutsolesLiningsComponents
Uppers

Upper materials

The upper drives breathability, look, branding method and a large share of cost. It is also where most fit and durability complaints originate, so the material and its reinforcement strategy are worth specifying carefully before sampling.

Engineered mesh

Air mesh, sandwich mesh

Knitted or warp-knit synthetic with zoned density for ventilation, light stretch and support; the workhorse athletic upper. Takes screen print, heat-transfer film and welded TPU overlays cleanly, so multi-colour branding is easy. Typically run at 90-250 GSM depending on the zone, with denser knit at the eyestay and toe.

Best for: Running, training and summer styles that need maximum airflow at a sensible cost

Material detail →

Flyknit-style knit

Knit, sock-knit, engineered knit

One-piece flat- or circular-knit upper with built-in stretch, zoned support and a near-seamless sock-like fit. Premium hand-feel and a clean branding canvas (logos can be knitted in), but it needs an internal bootie, heel counter and overlays to hold shape. Slower to develop and costs more than mesh.

Best for: Premium running and lifestyle styles where look and adaptive fit justify the cost

Material detail →

PU / synthetic leather

Microfiber, PU-coated, synthetic leather

Structured, easy-to-clean coated fabric that embosses, debosses and prints cleanly and resists scuffing. Holds shape with little reinforcement and gives a more formal or rugged look than textile. Less breathable, so it is often combined with mesh windows or perforation.

Best for: Casual, walking and structured or weather-resistant looks

Canvas

Cotton canvas, cotton-poly canvas

Classic woven textile for vulcanised sneakers; low cost, prints and dyes well and gives an unmistakable heritage look. Breathable but absorbs water and creases, so it suits dry-wear lifestyle rather than performance. Usually paired with a toe cap and foxing tape.

Best for: Vulcanised casual and lifestyle sneakers at accessible price points

TPU / synthetic overlays

Welded film, hot-melt overlays, no-sew

Thermoplastic film or skived synthetic bonded onto a mesh or knit base to add structure, lockdown and branding without stitching. No-sew welding reduces seams, weight and hot-spots and gives a clean modern look; thicker moulded overlays add toe and heel protection.

Best for: Reinforcing mesh/knit uppers and adding seamless logo and support zones

Outsoles & midsoles

Sole materials

The sole sets cushioning, durability, grip and weight - and a big part of perceived quality. Buyers feel the midsole and judge wear by the outsole, so this is where construction trade-offs most directly affect price and returns.

EVA foam

Ethylene-vinyl acetate

Lightweight closed-cell cushioning foam that is the default midsole for sport shoes. Density (typically Asker C 45-60) and thickness are tuned to deliver a soft or firm, responsive feel. Easy to mould, paint and brand, but it can pack out over heavy mileage and needs a rubber outsole for grip.

Best for: Running, walking and training midsoles across most price points

Material detail →

Phylon

Compressed EVA

Heat-compressed and moulded EVA with a finer cell structure, lower weight and a cleaner, more premium finish than standard EVA. Holds detailed sidewall shaping and logos well. Slightly firmer and pricier; favoured for higher-end running and training silhouettes.

Best for: Premium running and training midsoles needing a refined finish

Rubber outsole

Solid / blown rubber

Ground-contact layer for grip and abrasion resistance. Solid rubber is the most durable and wear-resistant; blown (foamed) rubber is lighter and softer but wears faster. Compound, hardness, tread pattern and coverage (full sole vs pods) are all tunable to category and price.

Best for: All categories needing grip and wear resistance

Material detail →

TPR

Thermoplastic rubber

Injection-moulded thermoplastic blend that gives decent grip and a clean moulded look at lower cost than rubber, with no curing step. Heavier and less abrasion-resistant than good rubber and can feel firm in cold weather, but very cost-effective for value and comfort lines.

Best for: Casual, walking and value programs where cost matters most

TPU shank / plate

Midfoot shank, propulsion plate

Rigid thermoplastic polyurethane component embedded in or under the midsole to add torsional stability, arch support or a more propulsive ride. A midfoot shank stops the shoe twisting; a fuller plate stiffens the forefoot. Adds tooling cost but raises perceived performance.

Best for: Stability training, support walking and premium running platforms

Linings & components

Linings & components

Comfort and finish details that buyers feel even if they don't see them. Linings, footbeds and trims are where a shoe reads as cheap or considered, and they are inexpensive places to lift perceived quality.

Comfort foam lining

Foam-backed textile, brushed tricot

Soft foam-laminated textile that lines the collar, tongue and quarter for next-to-foot comfort and reduced friction and blistering. Brushed or velour faces feel premium; thickness is balanced against breathability and a snug fit.

Best for: Walking, comfort and daily-wear styles

Moulded EVA insole

Footbed, sockliner

Cushioned, contoured EVA footbed that improves underfoot comfort and is fully brandable (printed logo, size and care info) and usually removable. Anatomical moulding and a fabric top cloth raise the comfort message at low cost.

Best for: All categories; an easy comfort and branding upgrade

OrthoLite-style insole

Open-cell foam insole

Open-cell PU foam footbed (OrthoLite-style, on request) that stays resilient over time, breathes and helps manage moisture and odour better than basic EVA. A recognised comfort cue for premium positioning.

Best for: Premium comfort and running lines

Laces, eyelets, trims

Hardware & trims

Flat or round laces, metal or plastic eyelets, heel tabs, pull loops, woven labels and zip pulls - all customizable in colour, material and branding. Small parts that strongly affect the finished look and let you brand at low unit cost.

Best for: Branding and finish detail across every category

Moisture-wicking textile

Performance lining, mesh lining

Knit or mesh lining engineered to move sweat off the foot and dry quickly, keeping athletic shoes cooler and reducing odour. Often paired with antimicrobial finishes for performance and comfort positioning.

Best for: Running and training styles where in-shoe climate matters

How to choose

Spec materials around price, market and use - in that order.

The fastest way to brief a shoe is to fix three things first: the target retail price, the destination market, and how the shoe will actually be used. Those decide how much you can spend on the upper, midsole and outsole, and where to put it. A value daily trainer might pair a basic mesh upper with a single-density EVA midsole and blown-rubber pods; a premium model might move to a knit upper, dual-density or phylon midsole and fuller rubber coverage.

As a rule of thumb: the upper drives breathability, look and branding; the midsole drives comfort and weight; the outsole drives grip, durability and a big part of perceived quality. Tell us your price and market and we'll propose a combination and a sample plan.

Quick comparison

Where each upper and sole material fits.

Indicative positioning - final spec confirmed at sampling.

Swipe horizontally to view all columns.

MaterialRelative costBest forWatch-out
Engineered meshLow-mediumRunning, training, summer stylesNeeds overlays for structure
Flyknit-style knitMedium-highPremium running, lifestyleHigher cost, more development
PU / synthetic leatherLow-mediumCasual, walking, structured looksLess breathable
EVA / phylon midsoleLow-mediumCushioning for most categoriesCan pack out over heavy use
Rubber outsole (solid)Low-mediumDurability, walking, heavy useHeavier than blown rubber
Rubber outsole (blown)Low-mediumLighter running outsolesWears faster than solid
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Not sure which materials fit your price and market?

Send your target retail price, market and product type. We recommend an upper / outsole / lining combination and a sample plan.

Response target: one business day · Sample plan confirmed before payment · NDA available on request

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