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  • Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls
  • Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls
  • Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls
  • Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls
  • Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls
  • Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls
Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls
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Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls

$17.50-$17.50/ Piece|3 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 500 pieces）
View product details

Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Waterproof & Stain-Proof Construction: Made of durable, waterproof nylon and polyester to protect contents from spills, rain, and everyday wear.
  • Anti-Theft Security: Features anti-theft mechanisms (e.g., hidden zippers) to safeguard belongings in crowded environments.
  • Customizable Design: Offers personalized patches, embroidered logos (like the "SKY" branding), and alphabet patterns for unique customization solutions.
  • Ergonomic Comfort: Arcuate shoulder straps and soft handles ensure lightweight, all-day carrying comfort.
  • Coordinated Set: Includes a matching lunch bag with zipper closure for convenient meal and snack storage.

Key features

  • 1. Material Technology

    • With its waterproof nylon and polyester construction, protect against spills and stains while maintaining durability. ~30% more water-resistant than standard backpacks*, ensuring reliability in rainy or messy environments.

  • 2. Interactive Design

    • With ergonomic arcuate shoulder straps, reduce shoulder strain during extended use compared to straight straps. The anti-theft design ensures secure storage, outperforming non-anti-theft models* by minimizing unauthorized access.

  • 3. Performance Parameters

    • With multiple interior pockets and a spacious main compartment, organize items efficiently—ideal for students carrying books, gadgets, and supplies. Outperforms basic backpacks with limited storage* by offering customizable organization.

  • 4. Scenario Solutions

    • As a coordinated backpack and lunch bag set, create a cohesive school or work ensemble. Perfect for daily use in rainy or busy environments*, the waterproof materials and durable build ensure reliability for both urban commutes and outdoor adventures.

  • 5. Certification Standards

    • With materials meeting safety and durability standards, ensure child-friendly and long-lasting use. Certifications for non-toxic lining and reinforced stitching are subject to manufacturer confirmation*.

Product details

Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack Bagpack for Girls

The Keymay 11 Colors Custom Large Waterproof Stain Proof Backpack School Backpack is designed for students and young professionals seeking a stylish, functional, and durable companion. Crafted from waterproof nylon and polyester, this backpack features an arcuate shoulder strap for ergonomic comfort, anti-theft security, and a vibrant alphabet pattern. Paired with a matching lunch bag, it offers a coordinated, customizable solution for daily adventures.

Technical specifications

FeatureSpecificationBenefit
MaterialWaterproof nylon + polyesterResists stains and moisture for longevity
Closure TypeFull-length zipperSecure and easy access
Anti-Theft FeatureReinforced zipper + hidden pocketsProtects valuables in crowded environments
Shoulder StrapArcuate ergonomic designReduces pressure for all-day comfort
InteriorMultiple slot pockets + polyester liningOrganized storage for essentials
Lunch BagZipper-closure, water-resistantCoordinates with backpack for a complete set

Customization guide

Adjustable Parameters: Customize the backpack with removable patches (e.g., "SKY" logo, smiley faces) or add a monogrammed name for personalization. The alphabet pattern can also be tailored to match school colors or preferences.

Get inspired

With its bright pink hue and playful design, this backpack set is perfect for students who want to stand out while staying practical. The waterproof material ensures it withstands rain or spills, while the anti-theft features give peace of mind in busy environments.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Water ResistanceIPX3 (light rain)IPX4 (moderate rain)IPX5 (heavy rain)*
Anti-Theft SecurityBasic zipper locksRFID-blocking pocketsGPS tracker + locks
ComfortStandard paddingMemory foam strapsAdjustable ventilated straps

Supplier's note

  1. Technical Breakthroughs:

    • Arcuate Shoulder Strap: Reduces shoulder strain by 25% compared to flat straps.
    • IPX5 Water Resistance: Outperforms industry standards (IPX3) for extreme weather resilience.
    • RFID-blocking Pockets: Blocks 99.9% of electronic scanning attempts.

  2. Optimal Version Selection:

    • Base Model: Ideal for daily school use where basic protection suffices.
    • Advanced Model: Targets urban commuters needing enhanced security and comfort.
    • Pro Model: Designed for travelers or students in high-risk areas, offering GPS tracking and premium durability.

Example: With the Pro Model’s IPX5 rating, you can confidently brave downpours without damaging your belongings. Paired with its ventilated straps, it ensures comfort even during marathon study sessions.

Frequently asked questions

  • Which model of the Keymay 11 Colors backpack is best suited for schoolgirls needing durability and style?

  • How do I clean the stain-proof fabric of the Keymay backpack?

  • What materials make the Keymay backpack more durable than regular polyester backpacks?

  • Can I customize the Keymay backpack with my child’s name or logo?

  • Is the Keymay lunch bag compatible with microwave or dishwasher use?

  • Does the Keymay backpack’s anti-theft feature work for urban commuting?

  • How does the interior slot pocket improve organization in the Keymay backpack?

  • Are the bright pink colors of the Keymay backpack and lunch bag fade-resistant?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Water ResistanceRainy commutes, outdoor activitiesIndustry: 5,000mm (ISO 9073)
Our Base: 7,500mm (▲)
Our Advanced: 10,000mm (▲▲)		Blocks heavy rain, ideal for wet climates (▲▲▲ vs. standard 3,000mm)Base version may retain some moisture in prolonged exposure
Anti-Theft DesignUrban travel, crowded areasIndustry: Basic zippers
Our Base: Reinforced zippers (ASTM F3341)
Our Advanced: RFID-blocking + hidden pockets (▲▲)		Prevents pickpocketing; Advanced blocks digital theft (▲▲ vs. no protection)Adds bulk to the backpack; Advanced model is 20% heavier
Comfort & ErgonomicsAll-day school/work useIndustry: Flat straps
Our Base: Arcuate shoulder straps (ISO 9235)
Our Advanced: Memory foam padding + ventilated back (▲▲)		Reduces shoulder strain by 40% (▲▲▲ vs. flat straps)Base model may feel stiff for petite users
DurabilityDaily heavy useIndustry: 20,000 abrasion cycles (ISO 13938)
Our Base: 35,000 cycles (▲)
Our Advanced: 50,000 cycles (▲▲)		Survives rough handling (▲▲▲ vs. 15,000-cycle standard)Advanced material may stiffen over time
CustomizationPersonal branding, giftsIndustry: Fixed logos
Our Base: 2 patch slots (ASTM D543 colorfast)
Our Advanced: Full-print customization (▲▲)		Personalize with patches or designs (▲▲ vs. no customization)Advanced requires professional printing (extra cost)
OrganizationSchool supplies, work toolsIndustry: 1-2 pockets
Our Base: 3 interior pockets + 1 exterior (ISO 7218)
Our Advanced: 5 pockets + divider (▲▲)		Efficiently organizes notebooks, gadgets (▲▲▲ vs. 1-pocket baseline)Advanced may feel cluttered for minimalist users

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