Feature In The Block

I would like to add selected feature (not whole list) in the block, however code related to feature doesn't work in the block, for example:

{$features = $product|fn_get_product_features_list}
    {foreach from=$features item="feature"}
        {if $feature.description == "my-feature"} 
{$feature.variant} -should be visible as a sticker
{/if} {/foreach}

Block is loaded in Tabs.

Ok. It's working, cache again didn't flush. Btw. Is it any shortcut to get specific feature except using foreach function?