Sportmax is their lower price point collection. It's fine, but the top line is the main Max Mara line, all Made in Italy with fine fabrics.
Even S, Weekend... most of their pieces are not Made in Italy if that matters to you. The difference is also in the fabric, the lower priced lines are often blended fabric (e.g. a little cashmere, a little wool, a camel hair, all blended). In the Max Mara line, you will see more 100% pure fabrics such as 100% cashmere, 100% camel hair, etc. I think the lower priced lines are mostly virgin wool or a wool blend.
I think any Max Mara line is fine. It depends on your needs..."depends on your needs".. what an empty statement!
Ok, let me be more specific to try and help as Max Mara pricing is all over the place to me for their coats. You can get a $4K coat and a $1K coat, and upfront they look the same.
If you want top quality, I would go for the Max Mara line. Their 100% cashmere and 100% camel hair coats are stuff of legend. It's a higher price point, but their coats last forever. You almost want the coat to get beat up so you can buy a new one, but they just keep ticking and looking great. Fabric is super luxurious.
If you want warmth for freezing cold temperatures, their 100% camel hair coats are amazing. The SA convinced me to try camel hair (I am a cashmere die-hard thinking in my mind it's the best). Wow... camel hair is warmer than cashmere, and I like that thick dense texture. With the other lines, the coats are mostly in virgin wool, and the warmth is not quite there.
If you want a fashionable coat for mid-winter weather to bop around, 100% virgin wool is usually good enough. You won't get that luxurious feel or look of cashmere or camel hair, but if the coat looks chic, then you get the chic look! It's also a lower price point too if the coat is more on the trendy side vs. a classic style.
One more thought... I think it's really important to consider the level of warmth you want. I once purchased a coat from Burberry. I loved the style, it was Made in Italy. The design was also a warm & toasty design with a funnel neck. I thought... I am going to be so warm and so cute! But nope... I was cute, but I was freezing! The darn coat was not warm due to the fabric, virgin wool, on the thinner side. Ugh... the few times I wore that coat, I was cold. When I tried to wear it on warmer winter days, the fabric was good, but the design was a "warm & toasty" style it looked a bit ridiculous for a warm winter day. I hope that made sense.
For a true warm cozy winter coat, for me... it's cashmere or camel hair. Virgin wool and wool-blends do not work for me.
Anyway, just some thoughts to share my coat stories. I hope this was helpful. Good luck!
So many choices! I think you will love Max Mara!