When I first trained at our dojo I used an old aikidogi that I had from years ago. It's a very heavy weave material, and while it did make great snaps when you punched, it felt very restrictive for kicking. I've been using one my sempai got for me since then which is much lighter grade and it's excellent for getting your legs up high.
But I can imagine that the heavier gis are great in winter!
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