Hops from Mashematics are generally available in 138g packs.

These packs are multilayer aluminised mylar oxygen and light barrier (both essential). All hops have a Harvest year (a very helpful feature as depending on packaging and storage they do degrade over time the Europeans put a best by date usually 5 years and the Americans a test after date, for alpha, of 3 years),.

For savings consider 500g or even 1kg packs