Buff Original EcoStretch NeckwearOriginal EcoStretch Neckwear. Multifunctional product designed for all year round use. Ideal protection against the cold during high intensity outdoor activities such as trail running, trekking, bouldering, hiking, horse riding, cycling or riding a motorbike. Fit for most necks. Imagine you would start it all over again. Thats what we just did. Our legendary tubular enters a new era to become more comfortable and natural than ever. Optimal capacity