California-born climber Mike Graham first started scaling the walls of Yosemite National Park in the early 1970s. Back then, he and his climbing peers had a uniform of sorts: cheap white sailor's pants picked up from army surplus stores. The choice was pure function: white kept them cool in the summer heat, and the baggy cut gave them the freedom of movement climbing demanded.
That practical, do-it-yourself mindset would eventually lead Graham to create one of outdoor apparel's most enduring designs.
From Kung-Fu Pants to Climbing Icon
The breakthrough came through a friend. John Bachar, one of Graham's climbing partners, wore kung-fu pants made by a brand called Golden Dragon. They had a baggy fit, a tie waist, and a rudimentary gusset, but Graham saw room for improvement.
He took the pants apart and reworked the gusset into a diamond shape, adding reinforced stitch lines for durability and a small backpack buckle for quick adjustments. Cuffs were added so climbers could keep their footwork visible on the rock. Over time, the design evolved further. The cuffs came off, the legs were trimmed and straightened, until the pant was just as at home in a pub as it was on a boulder problem.
Three Signature Features
By blending his years of climbing experience with the functional heritage of traditional kung-fu trousers, Graham created a pant built around three defining innovations:
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Diamond-Shaped Crotch Gusset – enables unhindered 180-degree leg splits and maximum flexibility on the wall.
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Integrated Webbing Belt – a nylon strap inspired by backpack buckles, allowing for quick, one-handed waist adjustment.
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Hard-Wearing Twill – a durable, heavy-duty cotton fabric built to withstand harsh rock faces and everyday outdoor wear.
A Design That Never Needed Changing
More than four decades on, the silhouette remains untouched. As Gramicci's creative director, Stephan Wendler, puts it:
"Nothing beats the original Gramicci Pant — it's such a great and timeless design. We have not changed the silhouette or anything. The biggest change is that we started using organic cotton."
Though it was designed for climbers, the G-Pant's comfort and durability soon attracted a much wider following. Surfers, skaters, and Japanese streetwear enthusiasts all adopted it, cementing its place as a crossover staple between outdoor performance gear and fashion subcultures.
As Wendler sums it up:
"The Gramicci Pant hasn't changed — but the community around it has."