Inventory management for Shopify running stores

The inventory problems running stores run into

• Size and width curves. A single shoe model can have 20+ variants across sizes and widths, and each sells at a different rate, so treating the shoe as one SKU hides real stockouts in popular sizes.
• Shoe model churn. Brands update models yearly or twice yearly, so last season's bestseller gets discontinued and you need to shift forecast weight to the replacement model manually.
• Mixed supplier types. You likely order shoes from a few big brands with firm MOQs and long lead times, and nutrition or accessories from smaller distributors with faster turnaround, so lead times vary a lot across your catalog.
• Gels and nutrition shelf life. Energy gels, chews, and drink mixes carry expiry dates, and overstocking ahead of a slow season can leave you holding stock that expires before it sells.
• Event-driven demand spikes. Local races and marathon training season cause sharp, short-term jumps in shoe and nutrition sales that do not match the rest of the year's pattern.

Seasonality and demand

Running stores see demand climb around New Year resolutions, spring and fall marathon training blocks, and local race calendars. A city marathon can drive a spike in shoe and gel sales for the four to six weeks before race day, then drop off sharply after. Back-to-school and holiday gift periods can also lift apparel and accessory sales. Plan ahead by setting longer days of cover before known training season starts, and update your sales history after each event so the forecast does not keep expecting race-week demand once the event has passed.

Suppliers, lead times and minimums

Running stores typically order from a handful of major shoe brands with fixed per-model MOQs and lead times that often run several weeks, especially for overseas-manufactured lines. Apparel often comes from the same brands or separate wholesalers with similar terms. Nutrition and accessories (gels, hydration, socks, insoles) usually come from smaller regional distributors with lower MOQs and faster turnaround, sometimes within a week or two. Case packs for shoes are often small, sometimes a single pair per size, while nutrition items commonly ship in boxes of 12 or 24.

Worked example

Riverside Run Co. sells the Pulse Trail 3 in men's size 10 medium width. Daily sales for that variant average 1.5 pairs. The supplier's lead time is 20 days and Riverside keeps 5 safety days, so the reorder point is 1.5 x (20 + 5) = 37.5 pairs, rounded up to 38. Riverside wants 30 days of cover. On hand is 20 pairs with 12 already on order, so order quantity = 1.5 x (20 + 30) - (20 + 12) = 75 - 32 = 43 pairs. The supplier's case pack is 6 pairs, so SteadyShelf rounds the suggested order up to 48 pairs.

Try it with your own numbers in the reorder point calculator, or size your buffer with the safety stock calculator.

A simple system to start this week

1. List every shoe model as a parent product with width and size as variants, not as separate products.
2. Set each supplier's lead time and case pack size in SteadyShelf so order quantities round correctly.
3. Flag your top 10-15 running shoe SKUs by sales volume and watch their order-by dates closely, since stockouts there hurt the most.
4. Build in extra safety days for any shoe or nutrition item shipped from overseas.
5. Check the weekly reorder email every week, even in slow months, so you do not miss a quiet re-order and get caught at the next spike.
6. After big events or marathon season, update your sales history so the forecast adjusts instead of over-ordering for a now-quiet period.

How SteadyShelf fits running stores

SteadyShelf fits running stores well for the core job of keeping popular shoe sizes and nutrition products in stock, since it treats each size and width as its own variant with its own order-by date. It does not handle transfers between a shop floor and backroom location, does not track gel or chew expiry dates, and will not manage bundles like shoe-plus-sock promotions, so you still need a manual process or separate tool for those.

$29/month flat, unlimited products and suppliers, 30-day free trial.

SteadyShelf is launching on the Shopify App Store. Join early access to get the install link first.

More: inventory management by store type · inventory glossary · Stocky alternatives

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