Otherwise slipper is comfortable.
580638
I wear an 8 1/2 size shoe, bought the Large 8-9. They are too small in the toe area even when not wearing socks. Otherwise slipper is comfortable.
1227072
The slippers are a little bit narrow by the toes.  Even then, they are comfortable, and they keep your feet warm too.
1855987
Slippers are warm and comfortable to wear. They can be worn outside with plenty of support. They are easy to care for and clean up nicely.
4139069
The slipper is great. Seems to be good quality. My only complaint is the size. I wear a 10.5, so i bought an 11. I think i should have gone with a 10 instead. They are a little big and I think a 10 would have beeen better. I can wear them and they will be fine, but I think in this case a 10 would have it better. Hard to tell some times when you order on line. The slipper is still a nice slipper.
2154252
These are quite comfortable with a good amount of padding on the bottom.  The top of the slipper comes up high enough so that they stay on well.  However, I am a size 8 1/2 and they fit, but are just barely big enough.  I would like to see these available in some solid and more neutral colors as well.
4569425
Love the interior comfort of the slipper but very loose around the top.  While it is adjustable by pulling in the tie string, not accustomed to a shoe being this loose.  Aside from that love the slipper.  Use it as a driving shoe.
2580612
Initial Review:
I typically purchase cheap slippers ~$20 each year. This is my first time purchasing the Acorns based off reviews.

Fit: I'm always a size 12 but these 12/13 fit quite tightly. Not a bad thing for slippers, but if I was a size 12.5 or 13, my feet would not fit at all.

Comfort: The inside is VERY comfortable. They are a bit fuzzy and have what feels like memory foam. Just what you want in a slipper. The top of the slipper is a bit small and digs into the top of my foot, but I think once I break it in it will be more comfortable.

Bottom Sole: This is very sturdy. I would definitely be comfortable wearing these outside. It was a bit firmer than I was expecting.

Warmth: These slippers run a bit hot. I can see my feet sweating frequently in these. My feet typically run hot, so it's not a surprise for me.

Overall: These are tight but very comfortable so far. Not the best slippers, but well worth the lower price.
4910739
was just a little big and rubbed blisters, I didn't want to wear these with socks, but I have to so I don't get blisters, otherwise the shoe is comfortable.
1447470
This slipper adjusts top and rear, so you can adjust for comfort.  It has a hard sole for outdoors, but it is not as soft as I like a slipper to be so I have installed a foam insert.
802124
Comfortable BUT caution needed....This is to confirm cautionary notes in some of the Amazon reviews I read before my purchase.
Your feet will slide around, which doesn't make it safe for some people.  I compensate somewhat by wearing socks. The Velcro flap design does not make for a secure fit allowing shifting and coming out of the slipper.  It needs to hold on better to the toe area.  That being said, they let my toes breath and stay cooler, which is what I needed and the cushioned sole is nice.
2376357
Received timely and in good order.  Quality is good, but not excellent.  Fit is good, though at first inspection the foot opening looks very small.  This was a gift to my wife.  She says they are comfortable and warm and she is quite satisfied.  There is no arch support, but none was expected as these are slippers and not intended for extensive wear.  The bottom soles have some (minimal) anti-slip grip but otherwise are heavy fabric.  Not sure how much wear they can endure but probably OK for bopping around the house on carpeted floor.  They are as described and generally meet expectations.
3043710
Part of the surface of the shoes rubbed my foot and gave me two big blisters. There is a bump in the middle of the shoe which causes blisters. Otherwise the shoes are comfortable.
173274
Between the toes straps take a little getting used to, but otherwise comfortable.
4049201
Slippers are nice and comply with its purpose.  Material has a nice, soft, touch, making the slippers comfortable.
Quality, however, leaves room for improvement.  One of the slippers had a hole on one side, basically a sean not sewing two parts together.  An easy fix, but still....
2815414
You have to be a bit aware when you take them off that the sole doesn't bunch up, but otherwise very comfortable.
1754396
These are very comfortable slippers and fit as expected. If you are looking for something to wear inside and outside, these are not what you are looking for. They do not have a rubber sole to protect the shoe from water, etc. I was looking for a slipper to wear indoors though; something to keep my feet warm on those cool nights. These do the trick and were reasonably priced.
3442310
These slippers are quite comfortable and soft inside and out. They are warm but since they don't hug my feet some of the cold air still gets its way inside. Maybe I should go for a taller style