Decathlon is very impressive. I have found quite a bit of high quality sporting goods accessories and fitness apparel. Here you can find every type of sporting goods supplies from weights to umbrellas to yoga mats to granola bars and everything in between … everything you need to wear while doing such sporting activities. What surprisingly impressed me about Decathlon is that not all the prices are insanely high. In fact you can find some pretty good deals here. I in particularly like their selection of bathing suits and I found quite a bit of apparel for 5 euro. Beware on weekends it gets pretty crowded. It’s packed with families and kids running around. So if you are irritated by crowds try to come by before lunch time during weekdays !! I would highly recommend stopping by if you are in the Sesto area and if not, take the 57 bus that drops you off right in front of the IPERCOOP, 15 minute ride from downtown Firenze.