Types of wraps: The wraps suitable for babywearing can be divided into two basic categories, as to the material they are made of and to their elasticity: elastic wraps and non-elastic, woven wraps (there are also semi-elastic wraps on the market, but these are certainly in minority). The elastic wraps are usually made of cotton with elastane and they are suitable for the smallest babies up to approximately 6 kilograms of weight (I will discuss the reason for this later on). Generally said, woven wraps are not limited as far as the weight of the wearie goes, they usually contain cotton as the basic material and can contain different blends. The carries you can tie with the woven wrap are different than in case of elastic wraps.
Length (size) of the wrap: Most manufacturers use standard sizing of wraps with numbers; size 1-8 (talking about the woven wraps; the length of elastic wraps is usually universal, 5 metres): size 1 – 2,2 m, size 2 – 2,6 m, size 3 – 3,2 m, size 4 – 3,6 m, size 5 – 4,2 m, size 6 – 4,6 m, size 7 – 5,2 m, size 8 – 5,6 m. Generally, you can divide the woven wraps into two categories – “short” wraps up to the size 4, and “long” wraps beginning with size 5. Babywearing beginners will usually use only the basic carries such as the front wrap cross carry or front cross carry and therefore, they should look for the long wrap, according to their clothes size and their height. The most universal size is 6 – a babywearing mum of an average height with size 38 to 40, maybe even 42, can tie “anything” without problems with a size 6 wrap. Slimmer mums can also look for size 5 wraps, bigger wearers should buy at least size 7. (However, be cautious when choosing the right size – not all the “sixes” are the same! Basically, the sizes of the wraps from different manufacturers differ in their real length; also the wrap is longer pre-wash, shorter post-wash and again longer after it is broken-in – this is beginning to be quite complicated but I wanted to mention it in case someone wonders why all the size 6 wraps do not measure exactly 4,6 metres.)