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  • Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag
  • Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag
  • Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag
  • Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag
  • Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag
  • Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag
Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag
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Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag

  • 3 - 99 Pieces
    $7.50
  • 100 - 299 Pieces
    $6.90
  • 300 - 999 Pieces
    $6.20
  • >= 1000 Pieces
    $5.70

Customization:

Logo/graphic design(Min.Order: 100 pieces)
Customized packaging(Min.Order: 100 pieces)
Graphic customization(Min.Order: 100 pieces)

Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Insulated Lunch & Cooler Solution: Designed to keep food fresh and beverages at optimal temperatures, ideal for school lunches, outdoor activities, or daily commutes.
  • Waterproof Portability: Durable nylon and PU material with a zipper closure ensures protection against spills and moisture, making it suitable for wet or messy environments.

Key features

  • 1. Material Technology

  • With waterproof nylon and PU material, you can protect your child’s lunch from spills and moisture, ensuring food stays fresh and dry.

  • 2. Interactive Design

  • With a secure zipper closure, you can easily access and organize contents while keeping items secure during transport.

  • 3. Performance Parameters

  • With insulated technology, you can maintain food temperature for up to 6 hours, keeping meals hot or cold during school hours.

  • 4. Scenario Solutions

  • Designed for back-to-school use, the lightweight and portable design makes it ideal for daily school lunches and outdoor activities.

  • 5. Certification Standards

  • With EPR Germany certification, you can trust compliance with rigorous environmental and safety standards, reducing ecological impact.

Product details

Keymay High Quality Back to School Gift Waterproof Nylon Girls Kids School Cooler Bag Insulated Lunch Box Children Lunch Bag

The Keymay High Quality School Cooler Bag combines durability and style with its waterproof nylon and PU construction, ideal for back-to-school use. Designed with a minimalist aesthetic in pastel colors, it offers insulation for temperature control and a secure zipper closure. Certified to EPR Germany standards, it ensures environmental compliance while meeting the needs of parents and kids seeking a practical, fashionable lunch solution.

Technical specifications

FeatureSpecificationBenefit
MaterialWaterproof nylon + PUDurable, weather-resistant, easy to clean
Closure TypeFull-length zipperSecure, spill-proof storage
InsulationDual-layer vacuum insulationMaintains temperature for 6+ hours
Water ResistanceIPX4 ratingResists splashes and light rain
CertificationEPR_Germany_PackingMeets EU environmental and safety standards
StyleSquare lunch/cooler bag with handlePortable, versatile for school/outdoor use

Customization guide

Adjustable parameters include:

  • Color/Pattern: Customize pastel hues or add logos/prints for branding.
  • Size: Scale dimensions (e.g., 20x15x10 cm to 25x20x12 cm) for different payload needs.
  • Material Thickness: Reinforce nylon layers for extreme durability in rugged environments.

Get inspired

With its sleek design and insulation capabilities, the Keymay bag is perfect for packing lunches, snacks, or small electronics. Its lightweight build and pastel palette make it a stylish choice for school, picnics, or travel—ideal for parents prioritizing both function and fashion.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Insulation Efficiency6-hour temperature retention+15% (7 hours)+30% (8 hours)*
Water ResistanceIPX4 (splash-proof)IPX5 (jet spray)IPX6 (heavy rain)
Durability Rating10,000 flex cycles15,000 flex cycles20,000 flex cycles

Supplier's note

  1. Technical Breakthroughs:

    • EPR Certification: Compliance with Germany’s strict recycling standards ensures eco-friendly disposal.
    • Enhanced Insulation: The Pro model’s 8-hour retention outperforms industry benchmarks by 30%, ideal for all-day use.
    • IPX6 Water Resistance: The Pro’s heavy-rain rating allows safe use in harsh weather, unmatched by competitors.
  2. Optimal Version Selection:

    • Base Model: Best for daily school use where basic insulation and splash resistance suffice.
    • Advanced Model: Ideal for outdoor activities (e.g., field trips) requiring jet-spray protection and longer temperature control.
    • Pro Model: Perfect for frequent travelers or extreme conditions. Its triple-layer nylon and IPX6 rating ensure durability and reliability in heavy rain or prolonged use.

With the Pro model’s 8-hour insulation, you can maintain food freshness for full-day school activities. Its IPX6 rating ensures reliability even in downpours, making it a standout choice for parents seeking premium performance.

Frequently asked questions

  • Which Keymay lunch bag model is best for school use?

  • How do I clean the zipper of a Keymay insulated lunch bag?

  • PU vs nylon: Which material is better for a kids’ lunch bag?

  • Can I customize the design of the Keymay cooler bag?

  • Is the Keymay lunch bag EPR-certified for safety?

  • How does the insulation keep food fresh in Keymay bags?

  • Are these lunch bags suitable for outdoor activities?

  • What makes the Keymay cooler bag durable for daily use?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material QualityDaily school use, outdoor activitiesBase: PU/Nylon blend (ASTM D412 tensile strength 28 MPa)
Advanced: Composite fabric (ASTM D5034, 32 MPa)
▲ Advanced offers 14% stronger material for durability
Lightweight and stylish
Base may require occasional maintenance; Advanced is costlier
Water ResistanceRainy days, beach outingsIndustry: Splash-resistant (ASTM D3782)
Base: Waterproof 30 mins (ISO 20685)
Advanced: Waterproof 2h (ISO 20685)
▲ Advanced ideal for prolonged exposure to water
Leak-proof design
Advanced may add bulk; not submersible
InsulationAll-day school, picnicsIndustry: 4°C maintained for 4h (ASTM D3101)
Base: 6h
Advanced: 8h (with phase-change lining)
▲ Advanced keeps food fresh 33% longer
Reduces ice pack reliance
Base requires ice packs for full-day use
PortabilityCommuting, hikingIndustry: 500g, basic handles
Base: 400g, ergonomic handles
Advanced: 300g, adjustable straps
▲ Advanced reduces weight by 40%
Easy grip and comfortable carry
Base handles may fatigue during long trips
DurabilityFrequent use, rough handlingIndustry: 500 abrasion cycles (ASTM D4966)
Base: 1,000 cycles
Advanced: 1,500 cycles
▲ Advanced withstands 50% more abrasion
Resists tears and scratches
Base shows wear after heavy use
CertificationsParents prioritizing safetyIndustry: Basic safety compliance
Base: EPR Germany Packing
Advanced: EPR + FDA/BPA-free
▲ Advanced adds health safety certifications
Meets EU/US standards
Base lacks additional health certifications

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