they are quite lightweight. definitely only for warmer weather. i sized down on them, but i regret doing so. i have relatively skinny legs, so they work, but they're a bit tighter than how i'd like them. my size 2 devoas definitely fit better. going tts is the best idea imo. i'm pretty much a true 46 all around, but at my skinniest (which is not now...because winter is stouts/porter season...), i can wear a 44 if they're not too slim.