CutSizeGenie is a Shopify app for fashion and apparel e-commerce brands that unlocks revenue from out-of-stock sizes using virtual inventory and size mapping. It improves size availability on Shopify product pages without theme edits.
Solutions

Jump sizes strategy: turn M/XL into a revenue recovery engine.

Many fashion brands intentionally stock jump sizes (like M and XL) deeper. With tailoring/cut-size workflows, those jump sizes can unlock demand for S and L — if Shopify size availability is managed smartly.

Install CutSizeGenie → OOS sizes solution Thresholds

What are “jump sizes”?

Jump sizes are sizes you stock deeper because they are easier to convert into neighbouring sizes through alterations. For example, you might stock M and XL deeper, and fulfil S from M, and L from XL where feasible.

Why jump sizes exist in real fashion operations

Manufacturing efficiency
Producing fewer base sizes can reduce complexity and rework, especially for embellished styles.
Demand uncertainty
Instead of guessing exact size ratio for every style, jump sizes give you flexibility post-order.
Higher sell-through
You reduce dead stock risk by keeping inventory “convertible” rather than split across many sizes.
Fits alteration reality
Tailoring is already part of the category — so you can systemize it for e-commerce fulfilment.

The Shopify problem

Shopify tracks inventory at the variant level. Even if your warehouse can fulfil S from M, Shopify will still show S as sold out on PDP — and customers drop.

CutSizeGenie fixes this by making the workflow Shopify-aware
You configure mappings (S → M, L → XL). CutSizeGenie pushes limited virtual availability to target sizes when needed, and consumes real inventory from source sizes when orders happen — all with safety thresholds and clean logs.

A practical rollout strategy

  1. Start with a pilot collection (high traffic + high conversion intent).
  2. Enable only 1–2 mappings (S → M, L → XL) initially.
  3. Set conservative thresholds and caps.
  4. Track virtual orders + exceptions for 7 days.
  5. Expand to more collections once ops confidence is high.

Turn your jump sizes into more Shopify sales.

If your brand already stocks M/XL deeper, CutSizeGenie helps you monetize that advantage online.

Install → Ops workflow Thresholds
Solutions
Related
Out-of-stock sizes Alteration workflow Inventory thresholds Glossary
Install →
Jump sizes strategy page. Explains jump sizes (M/XL) stocked deeper, how fashion brands fulfil neighbouring sizes via alterations, and how CutSizeGenie makes Shopify size availability work using size mapping and virtual inventory with safety thresholds and caps.