V.B.
I live in TX and bought this one when my son was born. I think it was a little more expensive than the regular Bjorn, but it was so much better in terms of the material being breathable! My son was born in May in Houston, TX and I used it all summer long with him (it is also REALLY humid here, so feels like temps are well over 100 degrees). I really loved it and I thought it was more comfotable for me to wear than my peanut shell sling. I used them both, but ended up liking the Baby Bjorn more. Grocery shopping was the BEST with that thing. He slept the whole time. I would highly recommend it.