V-baffle: A construction method used in down filled clothing and sleeping bags, which utilises individually constructed V-shaped chambers.
Ventile: A fabric developed during the second world war for fighter pilot immersion suits. Made from very tightly woven egyptian cotton, it is inherently windproof, very durable and breathable, is quiet, and feels comfortable next to the skin. In wet conditions, the cotton fibres absorb water and swell, blocking all the indices (gaps) in the fabric through which water can percolate. Usually used in a double layer to provide maximum weather protection. Excellent for polar conditions. Not popular for general outdoor use, due to it’s high cost.
Vibram: Inventor of the original rubber walking boot sole (previously, leather or hob-nails were used). Now used by virtually all quality walking boot manufacturers. Offers a very good combination of grip and durability.