I narrowed down my selection of laptop sleeves for my Macbook Pro 16" to these three.
They have the internal dimension to accommodate a 14.09" x 9.68" x 0.64" notebook.
I prefer a model with a briefcase handle when I travel with only the notebook.
Inateck Laptop Sleeve Shockproof Water-Resistant Case Compatible with 16'' MacBook Pro 2021, 15'' MacBook Pro 2019-2016(A1990/A1707), 15.4'' MacBook Pro 2013-2015, 14'' Laptops Briefcase Bag - Black
www.amazon.com
Best Sellers Rank #206 in Laptop Sleeves
Date First Available January 16, 2019
$21.99
Lacdo 360° Protective Laptop Sleeve Case for 16 inch New MacBook Pro M2 M1 Pro/Max A2780 A2485 A2141 2023-2019, 15 Inch Microsoft Surface Laptop 5/4/3/2/1, 15" Surface Book 3/2/1 Computer Bag, Black
www.amazon.com
Best Sellers Rank #678 in Laptop Sleeves
Date first listed on Amazon December 5, 2019
$19.99
MOSISO 360 Protective Laptop Sleeve Compatible with MacBook Air/Pro, 13-13.3 inch Notebook, Compatible with MacBook Pro 14 inch 2023-2021 A2779 M2 A2442 M1, Polyester Bag with Pockets&Belt, Space Gray
www.amazon.com
Best Sellers Rank #2,495 in Laptop Sleeves
Date first listed on Amazon November 14, 2019
$17.99 + 5% coupon
What makes the last item interesting is that it has a provision to attach it to handle of a carry on baggage.