Product overview
About comfort & casual flip-flops
Comfort flip-flops move beyond flat sheet soles: a moulded EVA footbed with arch and heel contour, a padded or lined strap and a rubber outsole layer for grip. The reference shows a black footbed and padded perforated strap with a red midsole layer and black outsole.
These are built more like a sandal than a slipper. The strap is usually a synthetic or textile upper over foam padding, anchored into the moulded sole, and the footbed shape is developed on a last-like model so the contour fits the size range.
Comfort and casual flip-flops suit lifestyle and outdoor brands and retailers who want a premium sandal in their summer range.
OEM: your design
Send your design, footbed contour references and strap materials. We develop footbed moulds or use available contours and build to your pattern.
ODM: developed with you
Start from references; we propose footbed shapes, strap constructions and layer colours and refine through samples.
Design characteristics
- Contoured, cushioned footbed with heel cup
- Padded, perforated synthetic strap with stitched edges
- Contrast midsole layer
- Rubber outsole with tread for grip
- Thicker overall sole than a classic hawai slipper
- Typical applications
- Summer comfort ranges · Lifestyle and outdoor brand sandals · Premium private-label beachwear · Post-sport recovery-style footwear (no medical claims)
- Target buyers
- Lifestyle and outdoor brands · Resortwear brands · Retail private label · Sports brands adding casual sandals
Materials and construction
Materials and construction for this style
Only options technically suited to this style are listed. Availability is confirmed in your quotation.
- Typical
- Usual for this style (industry norm)
- Development option
- Possible option, confirmed at quotation and sampling
- Feasibility to confirm
- Needs factory feasibility confirmation before it can be offered
| Textile or padded strap | Padded synthetic or textile strap, often perforated. | Typical |
|---|---|---|
| Synthetic leather (PU) | PU strap cover. | Typical |
| Full-grain leather | Leather strap for premium versions. | Development option |
| Textile lining | Soft strap lining. | Typical |
|---|---|---|
| Padded collar and tongue | Foam padding under the strap. | Typical |
| Anatomical footbed | Contoured footbed with arch and heel cup. | Typical |
|---|---|---|
| Textured footbed | Textured or soft-touch top surface. | Development option |
| EVA | Moulded EVA footbed and midsole layer. | Typical |
|---|---|---|
| PU midsole | PU footbed alternative. | Development option |
| Rubber | Rubber outsole layer with tread. | Typical |
|---|---|---|
| EVA outsole | All-EVA for lighter versions. | Development option |
| Moulded sole and strap | Moulded footbed and midsole with strap anchors. | Typical |
|---|---|---|
| Cemented construction | Rubber outsole cemented to the moulded midsole. | Typical |
| Reinforcement and edge finishing | Stitched strap edges and reinforced anchor points. | Typical |
Construction methods are explained on the manufacturing page. No method is presented as an in-house capability unless confirmed in your quotation.
Customisation and branding
What you can customise
Strap design
Strap material, padding, perforation and stitching
Colour combinations
Strap, footbed, midsole and outsole colours
Pantone colour matching
Colour matching across layers, subject to material feasibility
Footbed texture and colour
Footbed contour, texture and logo
Sole thickness and stack
Footbed and outsole thickness
Custom tread and outsole tooling
Custom outsole tread with tooling
Stitching colours
Strap stitch colour
Padding
Strap padding thickness
Branding without new tooling
- Insole printing. Logo printed or hot-stamped on the sock liner.
- Heat-transfer branding. Printed transfers applied with heat; good for multi-colour logos on textiles.
- Custom shoeboxes. Printed boxes to your artwork; minimums set by the box printer.
- Hangtags. Printed swing tags attached to the pair.
- Barcode labels. EAN/UPC labels on boxes or polybags, from codes the buyer supplies.
- Carton markings. Shipping marks, size breakdown and destination printed or labelled on export cartons.
Branding that needs tooling
- Embossed logos. Heat and pressure with a metal die raise the logo on leather or synthetic.
- Debossed and heat-stamped logos. A die presses the logo into the surface, optionally with foil.
- Strap and footbed logos. Logo moulded or embossed in strap or footbed; requires mould inserts or dies.
- Logo moulded in the outsole. Requires a new or modified outsole mould; only with custom sole tooling.
Custom lasts, outsole moulds, cutting dies and branding tools may add tooling costs and raise minimum quantities. They are quoted separately before you commit.
Sizing and specifications
Sizing and technical specifications
Size conversions are approximate and vary by last and brand; they are not a production grading chart, and your own brand size chart replaces them if you have one. Technical measurements are set on your last and samples, recorded on the approved sample and controlled in bulk.
Comfort footbeds are sized in whole sizes; the contour position (arch and heel cup) must be checked across the size range on wearers.
Size charts: Unisex sizes, Men's sizes, Women's sizes
Unisex sizes
One last across the run; US men's and women's equivalents shown. Unisex fit is usually based on a men's width.
| EU | UK | US men's | US women's | Foot length (mm) | Foot length (cm) |
|---|---|---|---|---|---|
| 35 | 2.5 | 3.5 | 5 | 225 | 22.5 |
| 36 | 3.5 | 4.5 | 6 | 230 | 23.0 |
| 37 | 4 | 5 | 6.5 | 235 | 23.5 |
| 38 | 5 | 6 | 7.5 | 240 | 24.0 |
| 39 | 6 | 7 | 8.5 | 250 | 25.0 |
| 40 | 6.5 | 7.5 | 9 | 255 | 25.5 |
| 41 | 7.5 | 8.5 | 10 | 260 | 26.0 |
| 42 | 8 | 9 | 10.5 | 265 | 26.5 |
| 43 | 9 | 10 | 11.5 | 275 | 27.5 |
| 44 | 9.5 | 10.5 | 12 | 280 | 28.0 |
| 45 | 10.5 | 11.5 | 13 | 290 | 29.0 |
| 46 | 11 | 12 | 13.5 | 295 | 29.5 |
| 47 | 12 | 13 | 14.5 | 305 | 30.5 |
Men's sizes
Typical men's range EU 39–47; smaller or larger sizes on request where the last allows.
| EU | UK | US men's | Foot length (mm) | Foot length (cm) |
|---|---|---|---|---|
| 39 | 6 | 7 | 250 | 25.0 |
| 40 | 6.5 | 7.5 | 255 | 25.5 |
| 41 | 7.5 | 8.5 | 260 | 26.0 |
| 42 | 8 | 9 | 265 | 26.5 |
| 43 | 9 | 10 | 275 | 27.5 |
| 44 | 9.5 | 10.5 | 280 | 28.0 |
| 45 | 10.5 | 11.5 | 290 | 29.0 |
| 46 | 11 | 12 | 295 | 29.5 |
| 47 | 12 | 13 | 305 | 30.5 |
Women's sizes
Typical women's range EU 35–42; developed on a women's last, not a scaled men's last.
| EU | UK | US women's | Foot length (mm) | Foot length (cm) |
|---|---|---|---|---|
| 35 | 2.5 | 5 | 225 | 22.5 |
| 36 | 3.5 | 6 | 230 | 23.0 |
| 37 | 4 | 6.5 | 235 | 23.5 |
| 38 | 5 | 7.5 | 240 | 24.0 |
| 39 | 6 | 8.5 | 250 | 25.0 |
| 40 | 6.5 | 9 | 255 | 25.5 |
| 41 | 7.5 | 10 | 260 | 26.0 |
| 42 | 8 | 10.5 | 265 | 26.5 |
How to measure foot length
- 01Stand on a sheet of paper with full weight on the foot, heel against a wall.
- 02Mark the tip of the longest toe and measure from the wall to the mark in millimetres.
- 03Measure both feet and use the longer one; measure later in the day when feet are largest.
- 04Compare with the foot-length column, not the shoe's outside length.
Technical measurements for this style
| Dimension | For this style |
|---|---|
| Insole length | Footbed length per size |
| Footbed width | Width at ball and heel |
| Sole thickness | Total sole thickness and each layer |
| Toe-post and strap position | Toe-post and anchor positions per size |
| Stack height and drop | Heel and forefoot thickness of the moulded footbed |
| Weight per pair | Measured on approved samples |
| Size grading | Footbed outline graded per size (die or mould per size) |
| Construction tolerances | Agreed before bulk |
Values are set in development; no figures are published.
Sampling, production and quality
From sample to bulk order
Sampling charges, MOQ and timing are quoted per project. The full development route is explained on the manufacturing page.
Sampling for this style
- Material and colour swatches for sole and strap
- Sample pair in the core size to confirm feel, thickness and strap fit
- Size run check before bulk for moulded designs
- Pre-production sample approved as the bulk standard
MOQ for this style
- Contoured footbeds need moulds per size, which raises set-up compared with sheet soles.
Quality checks for this style
- Strap anchor strength checked on samples
- Contour position consistent between left and right
Packaging
- Boxed or polybagged pairs; premium versions in printed boxes.
Testing and compliance
Frameworks relevant to this style. Obligations depend on where and how the product is sold, and the brand placing it on the market carries them. General information, not legal advice.
EU REACH restrictions (Annex XVII)Market obligation
Restricts chemicals in articles sold in the EU, including chromium VI in leather in contact with skin (entry 47, limit 3 mg/kg), certain azo dyes, PAHs in rubber parts and dimethyl fumarate. Leather and component suppliers' test reports are collected per order where a buyer requires them.
EU footwear labelling (Directive 94/11/EC)Market obligation
Footwear sold in the EU must indicate the material of the upper, the lining and sock, and the outsole, using the directive's pictograms or wording. Labels are produced to the buyer's market requirements.
EU General Product Safety Regulation (EU) 2023/988Market obligation
Applies since 13 December 2024 to consumer products placed on the EU market, including traceability information on the product or packaging. The obligations sit with the economic operator placing the product on the market; we supply the production information they need.
UK footwear composition labellingMarket obligation
The UK keeps equivalent requirements for indicating the composition of upper, lining and sock, and outsole on footwear sold to consumers.
Slip resistance (ISO 13287 method)Optional test, on request
Slip resistance can be measured on the finished outsole where a buyer needs data for an open-footwear or outdoor product. Results depend on compound, tread and test surface.
Physical test methods (ISO footwear methods)Optional test, on request
Commonly requested tests include whole-shoe upper-to-sole adhesion (ISO 17708), outsole abrasion (ISO 20871), outsole flex resistance (ISO 17707), upper flex resistance (ISO 17694) and colourfastness of footwear components (ISO 17700). Tests are run by external laboratories on request; no results are published until reports exist.
Khairay Footwear does not state any certification, approval or test result for this style unless documentation exists for your order.
Sampling, quality control and shipping explainedFAQ
Comfort & Casual Flip-Flops: questions buyers ask
Can you develop a custom footbed contour?
Yes. A custom contour needs footbed moulds per size, quoted with tooling costs and minimum quantities.
Is the strap padded?
The strap can be padded with foam under a synthetic, textile or leather cover, stitched at the edges.
Can you make orthopaedic or medical sandals?
We develop comfort footwear without medical claims. Medical or orthopaedic positioning would need clinical evidence and regulatory review.
Which outsole options are available?
Rubber outsole layers with standard or custom tread, or all-EVA for light versions.
Can the strap be leather?
Yes, leather strap covers are possible for premium versions, sampled for comfort and colourfastness.
How is slip resistance assessed?
Slip resistance can be measured by an external lab using the ISO 13287 method if you need data.
Can we submit our own flip-flop design?
Yes. These are reference styles; the RFQ accepts your designs, artwork and samples without choosing one.
What information do you need for a flip-flop quotation?
Sole and strap type, colours, branding, size range (adult and children's), quantity per colour, packaging and destination market.
Do you publish MOQs for flip-flops?
No single MOQ applies: it depends on die-cut or moulded construction, colours, strap type and branding. It is confirmed in the quotation.
Related reference styles
Related styles

KF-FF-002
Lightweight EVA Flip-Flops

KF-FF-001
Classic Rubber Hawai Flip-Flops

KF-FF-003
Two-Tone Rubber Flip-Flops

KF-CAS-006
Barefoot-Style Shoes
KF-FF-004 · Flip-Flops & Hawai Slippers
Develop this footwear style for your brand
The quotation form opens with flip-flops and KF-FF-004 selected. You can change any specification, or upload an entirely different design, tech pack or sample photos.
