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Commerce infrastructure for reselling used sunglasses

Professional sunglasses resellers, eyewear retailers, and brands use TWICE to run streamlined, scalable secondhand and trade-in programs.

Process supply faster

Intake pre-owned sunglasses from trade-ins, buy-backs, returns, and liquidation in one structured workflow.

Grade items accurately

Capture frame details, lens condition, authenticity data, and accessories consistently at item level.

List items at scale

Turn intake data into polished, trustworthy product pages that highlight condition and UV protection clearly.

Sell everywhere

Cross-list authenticated pieces to your store, retail locations, and marketplaces with real-time inventory sync.

From sourcing to selling in one continuous flow

Source

Source and intake with precision

Whether you acquire used sunglasses from in-store trade-ins, e‑commerce take-back, liquidation, or consignment, TWICE keeps intake fast and structured. Every pair gets a serialized identity from day one, with all critical eyewear details captured in a repeatable flow.
Unique IDs
Assign a unique ID to each pair of sunglasses the moment it enters your inventory.
Register new items quickly
Create items on the fly by snapping photos at the counter or in the warehouse.
Intake templates
Attach authentication notes, receipts, serial numbers, and proof of purchase to each item.
Flexible intake models
Track buy-back costs, trade-in credits, and consignor shares directly in the item record.
Inspect & grade

Grade and authenticate confidently

Sunglasses grading is all about trust: lens scratches, UV protection, frame integrity, hinges, nose pads, and brand authenticity. TWICE standardizes how your team inspects and records these factors so every listing reflects transparent, consistent condition information.
Dynamic attributes
Use dynamic fields to log lens wear, frame material, hinge condition, and fit adjustments.
Item-level media
Capture detailed photos and close-ups of lenses, logos, hinges, and any visible defects.
Item-level documentation
Store authentication data like serial numbers, certificates, and purchase documentation per item.
Attribute presets
Apply tailored grading profiles for sport sunglasses, luxury designer frames, and everyday styles.
List

List high-trust eyewear faster

Listing used sunglasses should not bottleneck your resale operation. TWICE transforms intake data into clear, conversion-ready product pages that highlight condition, original value, and UV performance — so you can publish more listings without more manual work.
Listing templates
Use reusable templates for different sunglasses categories to create listings in seconds.
Tags & collections
Auto-categorize by brand, style (aviator, wayfarer, wrap, visor), condition, or lens type.
Variants
Display condition grades, lens color, frame size, and included accessories accurately per item.
Conditional pricing
Automate pricing ranges by brand and condition, then fine-tune high-value or rare pieces manually.
Sell

Sell used sunglasses everywhere

From optical shops and fashion boutiques to your branded resale site and marketplaces, TWICE keeps your one-of-a-kind sunglasses inventory in sync. Cross-list items in a few clicks, avoid double-selling, and manage all orders through a single backend.
Cross-listing
Publish authenticated sunglasses to multiple channels without duplicate product creation.
Built-in online store
Launch a branded resale storefront optimized for one-off eyewear items and trade-in flows.
Integrated payments
Offer secure checkout and integrated payments with lower fees than typical marketplace commissions.
Unified order management
Manage orders, returns, and fulfillment for every channel from one organized dashboard.

Built for any business reselling sunglasses

From solo eyewear resellers to multi-location optical chains and global brands, TWICE powers used-sunglasses programs that are structured, transparent, and ready for scale.

Independent eyewear resellers

If you curate pre-owned sunglasses from local sellers, online deals, or estate lots, TWICE helps you keep every pair traceable without spreadsheets. Standardize your intake, grading, and pricing, and sell across your website and marketplaces from one clean backend — so you can focus on finding inventory that moves.

Optical shops & fashion retailers

Turn returns, overstock, and customer trade-ins into a profitable resale channel. TWICE lets you run structured buy-back programs, manage secondhand inventory alongside new stock, and keep availability synced across locations. Track margins, payouts, and performance so used sunglasses become a reliable revenue stream, not a side project.

Luxury & designer sunglasses specialists

For high-end and collectible sunglasses, authenticity and condition are everything. TWICE supports detailed item histories, authentication data, and nuanced pricing rules for premium brands. Give your team the tools to manage one-of-a-kind pieces confidently while giving buyers transparent, trustworthy product information.

Eyewear & lifestyle brands

Owned resale and trade-in programs help brands increase customer lifetime value while hitting circularity goals. TWICE provides the operating system for branded secondhand: structured take-back flows, lifecycle tracking per frame, automated credit issuance, and performance reporting across resale channels — all without building custom infrastructure.

Power your used-sunglasses resale with TWICE

From trade-in at the counter to multi-channel sales, TWICE keeps every pair traceable, every listing trustworthy, and every workflow scalable. Talk to our team to see how your sunglasses resale program can run on TWICE.

Frequently asked questions

How does TWICE handle unique, one-of-a-kind sunglasses?

Every pair of sunglasses in TWICE is tracked as a unique item with its own record. You can store lens and frame condition, brand, model, size, intake source, costs, photos, and authentication notes. Real-time stock updates prevent double-selling, and item histories let you see where each pair came from, how it was priced, and how quickly it sold.

Can TWICE support sunglasses trade-in, buy-back, and consignment models?

Yes. TWICE is designed to handle multiple sourcing models in a single system. You can run trade-in flows that issue instant credit, buy-back programs where you purchase sunglasses outright, and consignment setups that track owner shares and payouts. All financials are tied to item records, making settlements and margin calculations straightforward.

How does TWICE support grading and authenticity for used sunglasses?

TWICE lets you define standardized grading criteria for sunglasses, including lens wear, frame condition, hinge stability, and overall grade. You can capture close-up photos, record serial numbers or model codes, attach receipts or certificates, and log internal authentication checks. This structured data flows directly into your listings, improving buyer trust and reducing returns.

Can I connect my existing eyewear website or retail system to TWICE?

Absolutely. Many businesses keep their existing e‑commerce site or POS as the customer-facing layer while using TWICE as the resale engine behind it. You can connect via integrations, embed resale components, or link to a dedicated secondhand store powered by TWICE. Inventory, orders, and item lifecycles remain centralized in one place.

What about multi-location optical stores or franchises?

TWICE centralizes used-sunglasses inventory across multiple stores, pop-ups, and warehouses. You can route trade-ins to specific processing hubs, see what’s available in each location, and reallocate high-demand brands or styles quickly. All channels pull from the same source of truth, so staff know exactly what can be sold where, and reporting rolls up at the network level.