This is a wonderful carry with multiple passes over baby plus a chest belt, which makes it especially great for bigger/heavier babies and toddlers. Make sure you get the chest pass tight for the most comfort!
This carry generally uses your “base” size, which for most is a Size 5 or Size 6 wrap. If you are a size S/M in tshirt, your base will likely be a size 5, and if you are M/L/XL your base size will be size 6.
Post photos below of you trying out a Double Hammock!