Poe Wovens wraps are parallelogram shaped, with opposite tapers at each end.
Woven wrap sizing has historically been based on length in meters.
Size 2 (XXXS): is approximately 2.8 meters in length ( ~ 110.2" )
Size 3 (XXS): is approximately 3.2 meters in length ( ~ 126.0" )
Size 4 (XS): is approximately 3.6 meters in length ( ~ 141.7" )
Size 5 (S): is approximately 4.2 meters in length ( ~ 165.4" )
Size 6 (M): is approximately 4.6 meters in length ( ~ 181.1" )
Size 7 (L): is approximately 5.2 meters in length ( ~ 204.7" )
Size 8 (XL): is approximately 5.4 meters in length ( ~ 212.6" )
All of Poe's woven baby wraps are between 25" and 30" in width, or 63.5cm - 76.2cm.
*Longer sizes are great for multi-layer carries, and, the shorter sizes are great for single layer carries or for quick trips where baby will be going up-and-down frequently, and/or when you don't want the hassle of taking a longer wrap along with you.
*For reference, a Moby or Boba style stretchy wrap is around a size 8.