How Polyester’s Zipper Lets You Deposit Any Token, From Any Chain

Introduction

Crypto is built on the promise of interoperability, but fragmented networks and siloed assets still make seamless trading a challenge. Polyester aims to change that with a fully integrated ecosystem: a DEX that feels as smooth as a centralized one, a purpose-built blockchain and at the center of it all, Zipper—its powerful asset wrapper. 

Zipper serves as a true cross-chain gateway, allowing users to deposit and withdraw any token from any chain. It's a move towards making DeFi more connected, more liquid and more accessible. Here's how Polyester, through Zipper, is redefining the future of crypto trading.

Quick Look at the Polyester Ecosystem

Polyester’s ecosystem is built on three pillars:

1. Polyester DEX: A decentralized platform for trading zAssets (wrapped tokens) and native assets.
2. Zipper: The cross-chain bridge that converts external assets (e.g., Bitcoin, Ethereum) into Fabric-compatible zAssets.
3. The Fabric Chain: A high-throughput blockchain optimized for DeFi and dApp integration.

Zipper acts as the connective tissue, enabling assets from over 20 blockchains—including Bitcoin, Solana, and Dogecoin—to flow into Polyester’s ecosystem. This interoperability is the foundation of Polyester’s vision: one ecosystem, infinite possibilities.

Polyester DEX Dashboard, Source: Polyester

What Is Zipper and How It Works

At its core, Zipper maintains a simple, reliable protocol focused solely on zipping and unzipping assets, thereby minimizing complexity and potential attack surface. Zipper’s mechanics are pretty straightforward:

1. Deposit & Wrap: Users deposit native assets (e.g., ETH) into Zipper’s secure vaults on their original chain.
2. Mint zAssets: Zipper mints a 1:1-backed zAsset (e.g., zETH) on the Fabric chain, ensuring full transparency via on-chain audits.
3. Trade or Withdraw: Users trade zAssets on the Polyester DEX or withdraw them back to their native chain at any time.

Security First: Zipper employs Trusted Execution Environments (TEEs) to safeguard vaults, while every transaction is immutably recorded on both the native and Fabric chains. This dual-layer transparency eliminates counterparty risk, a critical advantage in DeFi.

Advantages of Polyester’s Zipper Integration

Cost and Efficiency

• No Bridge Fees or Delays: Traditional bridges often impose high fees and slow confirmation times; Zipper’s protocol mints zAssets almost instantly after vault confirmation, cutting costs and time.
• Gas-Free Trading on Polyester: Once assets are ripped into zAssets on Fabric, all trading occurs gas-free for users, thanks to Fabric’s fee subsidies and the efficient execution layer. 

User-Centric Design

• Unified Interface: Users deal with a single UI for deposit, trading, and withdrawal, removing confusion associated with using multiple bridges and DEX/UIs across chains.
• Spot Trading for all tokens: Polyester offers the usual perks like margin trading (up to 50x) and perpetuals, but what really makes it stand out is its support for spot trading across a wide range of tokens. It’s one of the few exchanges in the U.S. to do so.
• Advanced Trading Tools: From APIs for algorithmic traders to sub-accounts for portfolio segmentation, Polyester appeals to both retail users and institutions under the same rule set.

Security and Transparency

• On-Chain Auditability: Every deposit, mint, burn, and withdrawal is recorded on both the native chain and Fabric, providing full transparency for auditors, regulators, and users.
• TEE-Backed Vaults: Zipper’s use of TEE guarantees that only authorized unzipping transactions can release assets from vaults, drastically reducing bridge hack risks.

Comparing Zipper with others, Source: Zipper

Conclusion: Trade Without Borders

Polyester, powered by Zipper, is dismantling blockchain silos. By enabling users to move any asset across any chain, it transforms crypto trading from a fragmented experience into a unified, borderless economy. Whether you’re a retail trader diversifying portfolios or a developer building the next DeFi unicorn, Polyester’s ecosystem, with Zipper at its heart, offers the tools to thrive in a multi-chain world.

As the saying goes, “A chain is only as strong as its weakest link.”

The waitlist for Polyester is now live. Early access invitations will be sent out on a first-come, first-served basis beginning in Q3 2025. Join now to reserve your spot!
 

Disclaimer: Beluga has a marketing partnership with Fabric Labs and the CEO of Beluga is an investor.