No it isn't. It looks like you have no schema markup on product pages. When using the testing tool, no schema was detected. The quickest and easiest way to get schema markup done correctly for your Shopify store is to use a json-ld app like: https://apps.shopify.com/seo-json-ld-boost-by-verge
Yes, you can either 1) use an app to automatically add structured data to your store in JSON-LD format. You can also try the SmartSEO app - the structured data generated by that app is quite complete. It generates structured data for every product on your collection pages. But please do not use more than one app at a time because otherwise, you will end up with a mess of duplicate structured data.
2) or you can do it manually. This guide is VERY helpful as it explains exactly which data types and properties you should add to your homepage, collection, product, blog and article pages.
Let me know how it goes!
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