<http://schema.org/sku>
"PUNK-S7-ST-584"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.punkcase.com/products/galaxy-s7-waterproof-case-punkcase-studstar-light-blue-samsung-galaxy-s7-thin-fit-6-6ft-underwater-ip68-shockproof-dirtproof-snowproof-case-punk-s7-st-584>