I wrote and asked about the size, they told me that 9 inches would fit my size BUT they don't say that the zipper is small at the top or bottom side, not the longer side, and it does bodily harm and damage to me just trying to put it on. still trying. I would post a photo if I wanted to go through it. It may have shrunk and I can't comment on durability as I haven't worn it yet. The main downside is the bottom zip, but perhaps the side zip wasn't as effective for dust mites.
Biloban Box Spring Cover (4/5/7/9/13/17Inches) Twin, High Profile Waterproof Mattress Protector, 6 Sides Wrapping Zippered Mattress Encasement Cover
34 Review
RV 6 Sided Zippered Mattress Protector With Secure Locking Zipper For 70X80 RV King. Creates A Natural Seal Around Your Mattress From Dust, Pet Dander, Pollen, Liquids & More. Oeko-Tex Certifiedβ¦
14 Review
Protect Your Twin Mattress With Zippered Waterproof Encasements - Twin 2 Pack Included
14 Review
Twin Mattress Protector Waterproof Soft & Breathable Terry, Noiseless Mattress Cover Fits Up -14'' Depth, Skin-Friendly Machine Wash Mattress Protector
29 Review
Stylish Bracelet Replacement Band With Diamonds For Fitbit Versa 2 Smart Watch - Compatible With Fitbit Versa, Versa Lite, And Versa 2 Bands For Women - Silver
28 Review
LOFTEK LED Dimmable Floating Pool Lights Ball, 16-Inch Cordless Night Light With Remote, 16 RGB Colors & 4 Modes, Rechargeable & Waterproof, Perfect For Indoor/Outdoor, Exhibition Decor, 1-Pack
38 Review
Heavy Duty Waterproof Aozzy Air Conditioner Cover For Outdoor Window Units With Adjustable Straps - 17" W X 12" D X 13" H Inches
31 Review
Secure Your Swing With Safe And Easy Tree Swing Hanging Kit - 2000 Lb Breaking Strength And Quick 10Ft Long Strap Installation
34 Review