Here is a list of companies that make and sell stretchy wraps. Most are available from retailers in the UK, some directly from the manufacturers.

UK and Ireland

Ama Wrap
Calin Bleu
Close Parent
Cot2Tot
Hana Baby Wrap
Joy and Joe
Lifft Slings
Sa-Be
Snugiwraps
Victoria Slinglady

Europe

Ellevill Merino Air
Hoppediz
Je Porte Mon Bebe (JPMBB)
Lenny Lamb
Tricot Slen
Tricotti

Rest of World

Baby KTan
Boba Wrap
ErgoBaby Wrap
Happy Wrap
Moby
Tula