I ABSOLUTELY LOVE THESE SLIPPERS!! They are the ONLY Women's Slippers with a ZIPPER that I've seen on Amazon. The Zipper is Very Well-Made and works Great. The Slippers are SO SOFT, both Inside and Outside, and have a decent amount of Memory Foam in the Soles for Cushioned Comfort when I walk. The Soles are Indoor/Outdoor, Non-Slip and Fairly Thick, so they can be worn Outside to Get The Mail, Take Out The Garbage, etc., without any problems. Another Wonderful Feature of these slippers is that they are "Tall" and reach my Mid-Calf, keeping My Ankles & Calves WARM on Cold, Windy Days. Also, I have a few pairs of Pajama Bottoms that are Long, and I like to "Stuff" Them in My Slippers to keep them from dragging on the floor and getting dirty, and I can do that, No Problem, With These Slippers, Due To Their Height. The Only MINOR Issue I had was with the SIZE. I wear a Size 8 1/2 shoe, and HALF SIZES are NOT an Option with these Slippers, so I purchased the Size 9, figuring "Too Big" is Better Than "Too Small", and these slippers are a Tiny Bit Big for My Feet. If I wear them with Socks, They Will Fit Perfect, but Even Without Socks, they are OK, just a little "Roomy". Amazingly, These Slippers COST JUST UNDER $20, after I used the 10% OFF COUPON Offered!! I've Paid 3 TIMES The Price of These for Slippers That Weren't Even Half the Quality & Comfort of These Babies!! I FIRST purchased the RED slippers, and I LIKED THEM SO MUCH that I Purchased This BLUE PAIR and a GREY PAIR too, and am Considering Getting the Purple & White as well, if the Great Price Remains The Same!! The SHADE OF BLUE Looks Like A Bright Teal Blue in the Picture on My Laptop, However Now That I Have The ACTUAL Pair of BLUE Slippers In My Hand, I see They Are a BEAUTIFUL, RICH, DEEP ROYAL BLUE instead!! Colors In a Photo As Seen On A Computer Are Not Always What The Actual Item Color Is!! I Am Happy With The Royal Blue Color, But Others Expecting TEAL BLUE Could Be DISAPPOINTED.