This is the most popular workhorse in the MK series. Integral founder and climber Brian Gross designed and built this tent for the 1986 American K2 Expedition. Using his HP calculator and skills as an engineer, Brian specialized in designing functional structures that could withstand extreme winds. Since those early days, MK 1 XL tents have proven themselves on countless mountaineering expeditions throughout the world. The MK1 XL is longer and lower than the MK1. The maximum internal height of 39" means that the tent presents a lower profile in the wind. At 86" long there is just sufficient floor space for two people up to 6 ft 3". The MK1 XL comes standard with several features for extended mountain trips: tunnel vents high on each side wall for through-flow ventilation, tie in points 1/3 the way up each pole seam and a full sized 40" high door weather protected at the top by a wire stiffener eyebrow peak allowing for ventilation. A No-see-um mesh screen is integrated to the outside of the door and a vestibule zipper is pre-installed on tent.

Comes with six Easton 8" long light weight tubular aluminum stakes and four 10-foot lengths of 2.2mm cord.

An optional zip on/off vestibule is available for extra gear storage and cooking space.