Naiz Fit for Apparel | Size Fit Intelligence for Brands

Fit is the most expensive problem in the fashion industry. And the least solved.

We all know the challenge: return rates that won’t drop, shoppers buying two sizes to keep one, and product teams working without real data on how their garments fit real bodies.

At Naiz Fit, we work with apparel brands to solve this problem across all its dimensions, from the customer shopping experience to internal decision-making in product, buying, and distribution.

What Naiz Fit can do for your apparel brand

For your Ecommerce channel

Naiz Size Advisor

Naiz Size Advisor helps shoppers choose the right size on the first try. Fewer returns, more confidence, higher conversion. Integrates with Shopify, Magento, and Prestashop.

For your product team

Naiz Measurement Audit

Naiz Measurement Audit detects grading errors, incorrect tolerances, and inconsistencies between pre- and post-production measurements. Reliable measurement data across your entire collection.

Naiz Sizing Consistency

Naiz Sizing Consistency identifies SKUs with anomalous sizing behavior by category, market, manufacturer, and fabric. Standardize your collection’s fit before the customer notices.

Naiz Fitting Audit

Identify sizing issues, quality risks, and improvement opportunities in your collection using real demographic tester data, photographic documentation, and standardized quality scores.

For your buying and merchandising team

For your brand strategy

Naiz Merchandising

Naiz Merchandising detects assortment gaps, optimizes size curves, and adjusts stock allocation by market and category. Fewer lost sales, less overstock, higher sell-through.

Naiz Internationalisation

Naiz Internationalisation unifies sizing systems, adapts rules by market, and integrates cross-border sizing logic. Expand your brand globally without losing size consistency across regions.

Naiz Benchmarks

Naiz Benchmarks analyzes how customers perceive your brand’s fit compared to competitors, how your ecommerce performs in sizing, and what strategic opportunities you have.

One platform, smarter sizes, better business

HUBS

for Industries

For Ecommerce Teams

For Product Teams

For Retail Teams

For Strategy & C-level

Resources

One platform, smarter sizes, better business

HUBS

for Industries

For Ecommerce Teams

For Product Teams

For Retail Teams

For Strategy & C-level

Resources

Naiz Size Advisor

Naiz Measurement Audit

Naiz Sizing Consistency

Naiz Fitting Audit

Naiz Merchandising

Naiz Internationalisation

Naiz Benchmarks

One platform, smarter sizes, better business

HUBS

for Industries

For Ecommerce Teams

For Product Teams

For Retail Teams

For Strategy & C-level

Resources

One platform, smarter sizes, better business

HUBS

for Industries

For Ecommerce Teams

For Product Teams

For Retail Teams

For Strategy & C-level

Resources

Fit is the most expensive problem in the fashion industry. And the least solved.

What Naiz Fit can do for your apparel brand

Naiz Size Advisor

Naiz Measurement Audit

Naiz Sizing Consistency

Naiz Fitting Audit

Naiz Merchandising

Naiz Internationalisation

Naiz Benchmarks

Discover how brands like yours use fit data to reduce returns