Ask the man who's put more time in free climbing El Cap routes - Tommy Caldwell - and he'll tell you this is "his shoe". The TC Pro was designed to be his versatile weapon for all day, all kind climbing -just like on the Big Stone... and it can be yours too. The fit is fantastic - toes lie flat - for wiggling into thin cracks, smearing on super smooth slabs and day in, day out wear ability. The soul of the TC Pro is the P3 - Permanent Power Platform - and 1.1 mm Laspoflex midsole which defines the TCP's shape, support and performance characteristics - firm yet sensitive & precise. The P3 anchors the Sentex lined leather upper, tensioned sticky Vibram rands and well ventilated foam and mesh tongue. Further air-flow is encouraged by perforated "windows" - which aid in stretch-to-fit comfort over the little bone on the outside of your foot and also the top of your toes. Likewise slim ankle bone padding makes wide cracks a pleasure, not painful. The TC PRO comes equipped with a new special firm and sticky Vibram XS Edge rubber compound. Maybe this was Tommy's secret weapon - but the word is out now and you can get a pair! Fit comfortably for maximum enjoyment... your TCPs will stretch 1/2 size during the the first 10 pitches of climbing. Delivered anywhere in North America.