SizeMe
Data-driven sizing for fashion e-commerce, based on actual body measurements
About SizeMe
SizeMe is a size recommendation and size guide tool for online clothing and shoe stores. Shoppers enter one or more body measurements (chest, waist, hip), and SizeMe compares them against each product's measured garment data with its Size Simulator to recommend a size and show how it will fit. The Finnish company installs as a Shopify app or WooCommerce plugin and charges a commission only on purchases made using a recommendation.
Pros & Cons
Pros
- Uses real body measurements rather than height/weight estimates, which can be off by several sizes
- Commission-only pricing means no cost unless the tool drives a sale
- SizeMe handles product measurement data entry for the merchant
- Generates product-specific size guides automatically
- Developed with Aalto University and backed by published retailer case studies (Halti, Makia)
- Can be rolled out gradually, product by product
Cons
- Requires garment measurements for every product before recommendations activate
- Shoppers must measure themselves, which adds friction compared with quiz-based fit tools
- Commission rate is not published; you have to contact sales
- Small team (under 10 employees) with a mostly Nordic customer base
- No public reviews on the Shopify App Store, and the WooCommerce plugin was last updated about two years ago
Key Features
Measurement-based size recommendations
Recommends a size by comparing the shopper's actual body measurements against the product's garment measurements instead of estimating from height and weight. Works with a minimum of one measurement.
Size Simulator
Virtually fits each product against a set of standardized virtual bodies, accounting for garment type, wearing layer, and stretch value.
Product-specific size guides
Automatically generates a true-to-product size guide from each item's measurements, replacing generic size charts.
Fit visualization widget
Shows on the product page how the chosen size fits at key body points; the UI inherits store fonts and colors and offers several display options.
Remembered measurements
Saves a shopper's measurements so returning customers get recommendations without re-entering them.
Analytics and insights
Collects customer and product sizing data and turns it into analytics on fit and sizing for the merchant.
Managed measurement data
SizeMe accepts product measurements in any format and handles product classification and data entry at no extra cost.
Shopify and WooCommerce integrations
Ready-made Shopify app and WooCommerce plugin; Shopify installs track SizeMe-assisted purchases and bill commission automatically.
Multilingual widget
The Shopify app supports English, Finnish, Swedish, German, Arabic, Spanish, Estonian, Persian, and Japanese.
Pricing
- No fixed fees; commission only on purchases made using a SizeMe recommendation
- Size guide browsing is always free
- Product measurement data entry handled by SizeMe at no cost
- Shopify: commission billed automatically through the app
- WooCommerce: daily usage tracking, weekly reports, monthly invoice
Best For
Reducing apparel returns
Fashion stores show measurement-based size recommendations on product pages to cut size-related returns.
Launching new product lines or sizing systems
Brands introduce new cuts or sizing standards with product-specific size guides instead of relying on generic charts.
Outdoor and technical clothing retail
Retailers with layered garments use SizeMe's layer and stretch modeling to recommend sizes for jackets and base layers.
Footwear and accessory stores
Shoe retailers provide size recommendations and true-to-product size guides for brands that size inconsistently.
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