Intersport switches from Fit Analytics to Kleep, storewide

Intersport is the world's largest sporting-goods retail cooperative, thousands of stores across dozens of countries, and in France one of the biggest sports retailers full stop, spanning running, football, outdoor, ski, racket sports and every discipline between. The model is breadth: global brands next to house labels, technical equipment next to everyday sportswear, serving everyone from club athletes to families kitting out for a season. That breadth is Intersport's commercial strength and its operational burden, few retailers on earth carry a wider spread of categories, brands and sizing systems under one roof. The French operation, which also includes the Blackstore banner, runs a major e-commerce platform where all of that assortment converges on a single storefront. Intersport buys technology the way a cooperative of its size must: deliberately, comparatively, and with contracts that commit vendors to perform across the entire estate, not just the easy categories.

Multi-sport retail is the stress test of sizing technology. A running shoe, a ski jacket and a compression top share nothing but the existence of a size label: one is measured on a last, one is layered over mid-weights, one is engineered to fit tight by design. Multiply that by hundreds of brands, each with its own grid, a size M in one technical label is an L in another, and by shoppers who may be experts in their sport but strangers to the brand they're buying. Intersport had sizing technology in place, running Fit Analytics, one of the category's global incumbents. The open question was whether any single engine could genuinely serve every category rather than performing well in apparel and hand-waving through the rest. Intersport resolved it the way serious retailers do: a side-by-side evaluation of the incumbent against Kleep, judged on performance across the real assortment, every sport, every category, no exemptions.

After the side-by-side evaluation, Intersport replaced Fit Analytics with Kleep and committed to a two-year contract in April 2025, a storewide mandate covering the full assortment, Blackstore included. The deployment is built on Kleep's core architectural bet: per-garment, per-category calibration instead of one garment model stretched across all of sport. Footwear is modelled as footwear, technical outerwear as technical outerwear, compression as compression, each brand's sizing grid learned individually, so the engine adapts to the assortment rather than forcing the assortment into a template. Shoppers build a measurement profile once, through the two-photo body scan or a short questionnaire, and receive calibrated recommendations across every category in under 250 milliseconds, inside an interface white-labelled to Intersport's own storefront. One engine, one shopper profile, every sport, the consolidation that multi-category retail had been promised by sizing vendors for years, delivered under a contract that holds it to account.

The result is the decision itself, and the pattern it confirms. Intersport became the second major client to choose Kleep over Fit Analytics, after Lacoste's RFP had reached the same verdict, two of European retail's most structured evaluation processes, run independently, landing on the same conclusion against the same global incumbent. The two-year contract signed in April 2025 turned that verdict into a commitment across one of the world's largest sporting-goods estates, Blackstore included: a single fit engine accountable for every category, from lasts and widths in the shoe wall to layering logic in the ski aisle. For Kleep, it is the breadth benchmark of the portfolio, the same engine serving Givenchy's couture pieces and Showroomprivé's flash-sale volume now calibrates the full spread of world sport, inside a portfolio of 300+ live brands answering a sizing flow every five seconds in 2026.