Is the BUFF® multifunctional neck gaiter available in just one size? October 15, 2021 15:46 Updated Our multifunctional BUFF® neck gaiter is available in two sizes: child and adult. Related articles Do you have a size guide for your products? What are BUFF® products made of? How is the multifunctional BUFF® neck gaiter produced? How should I wash my BUFF® accessory? Who covers the shipment expenses in case of return?