I am currently working with materialize CSS and it seems I\'ve gotten snagged with the select fields.
I\'m using the example provided from their site but unfortunate
For me none of the other answers worked because I am using the latest version of MaterializeCSS and Meteor and there is incompatability between the jquery versions, Meteor 1.1.10 uses jquery 1.11 (overriding this dependancy is not easy and will probably break Meteor/Blaze) and testing Materialise with jquery 2.2 works fine. See https://stackoverflow.com/a/34809976/2882279 for more info.
This is a known issue with dropdowns and selects in materialize 0.97.2 and 0.97.3; for more info see https://github.com/Dogfalo/materialize/issues/2265 and https://github.com/Dogfalo/materialize/commit/45feae64410252fe51e56816e664c09d83dc8931.
I'm using the Sass version of MaterializeCSS in Meteor and worked around the problem by using poetic:materialize-scss@1.97.1 in my meteor packages file to force the old version. The dropdowns now work, old jquery and all!