Essentially a mountaineering harness, this year's Challenge is larger, enabling it to be worn over bulky clothing or for multiple users of varying sizes. The 3SO buckle system is easy to use and doesn't require doubling back. It even includes two gear loops that can be repositioned. The Challenge is also a great choice for gyms and ropes courses because of its bomber construction and easy adjustability. In 2004 we added the Dino, a children's version of the Challenge. CE certified. Comes in Sizes: M/L and XL.