Free Shipping when you spend $100



  • Days

  • Hours

  • Minutes

  • Seconds

Cam 101 (front only)

by: PatentWear

THE STORY ~ Non-climbers could live a lifetime without ever needing a cam device. For a climber, though, it is an essential piece of equipment used to protect against the consequences of a fall. Cams are a type of device placed in rock cracks as temporary, removable, no

THE STORY ~ Non-climbers could live a lifetime without ever needing a cam device. For a climber, though, it is an essential piece of equipment used to protect against the consequences of a fall. Cams are a type of device placed in rock cracks as temporary, removable, non-defacing (and thus “clean”) protection while climbing. Spring-loaded and controlled with a “trigger,” cams are designed to expand and grip the rock securely, thus protecting against a climber’s potential fall.

The evolution of the modern day climbing cam is difficult to follow. Climbing had never included such complex and technical inventions and had been originally an outdoor activity generally free of elaborate devices. It was not the materials and methods of manufacturing that had to catch up, or some arcane engineering problems: the very idea of climbing itself had much ground to cover. It had to arrive at its concern for degradation of the natural environment for a lighter, quicker, more intuitive approach to ascension. Equipment was traditionally primitive, and so basic that retractable mechanisms like cams would probably have been rejected as too Rube Goldberg-esque. Serious development—and acceptance—had to wait.

The Russian climber, Vitaly Abalakow, is often credited with the first such device, yet controversy always clouds discussions about who originated the cam concept. In principal, the cam concept is so simple that perhaps it had multiple origins.

Abalokov did claim to have invented the first cams, but in reality his “inventions” were the result of a meeting with Jeff Lowe on a climbing exchange in the Pamirs in 1974. Jeff introduced the Russian to his brother Greg’s early prototypes of what later became the Lowe Tricam, and explained in detail how they functioned: it was Abalokov’s first exposure to the camming idea. Worth noting is the fact that Abalokov subsequently made his own version from titanium flywheels.

In 1975, Greg Lowe patented his first design: a spring-loaded, single prong camming nut (Cam Nut) that proved to be both difficult to place, and unstable. These units had a 30-degree camming angle and their use never became widespread.

In 1978, Ray Jardine came along with his revolutionary Friends (inspired by Lowe’s earlier design) which were to forever change the concept of clean climbing.

Following in 1985 was Tony Christianson, with his innovative concept of using two parallel axles instead of one as with Jardine’s Friends, and thereby appreciably increasing the cam’s range of expansion. Licensed to Chouinard Equipment, the Camalot was born.

In 1989, David Waggoner’s inventive idea of inserting the springs within each of the cams resulted in his patent for the narrowest four-cam unit in the world. This Alien, along with his earlier Cable Pro design (the stainless steel control sheath trigger mechanism) further contributed to the evolution of the climbing cam.

Cams can now be considered one of the greatest leaps forward in the development of clean, fast, and safe climbing on both free and aid routes.

Read More





Available Shirt Colors:
Black Charcoal Heathered Charcoal Evergreen Deep Royal Eggplant Purple Heathered Brown
Click Here to Add Another Shirt Style or Color to Your Order!

TOTAL: $22.00

About Our Printing: is one of the First Companies in the World to print direct to garment (sometimes called DTG). Really, we've been doing it that long and we're that good!
Our Secret: Attention to Detail.

All orders are printed one at a time as they come in. Basically that means first come, first served. We do it this way so that we can ensure you receive only the highest quality products because we want you to be happy. This process usually means that your order will be hitting the mail in about 4-7 working days after you've placed your order.

We understand that sometimes you want it and you want it now. So, we have a way that you can 'jump the line'. Just select the 'Expedited' option when you check out and we will leapfrog your order to the front of the line.

Screen Printing / Bulk Orders:

Did you know that also screen prints? Yep - we sure do!
If you are interested in ordering bulk Tshirts for your company, organization or cause contact us to discover the best prices and quality around!

Product Detail:

Adult Ring Spun Fine Jersey Tee

100% ring-spun combed cotton, 30 singles, 4.3 ounce jersey. Set-in collar of 1×1 baby rib knit. Fabric laundered for reduced shrinkage. Tear away label. Heather colors are 50% ring-spun combed cotton/50% polyester, and Heather Gray is 90% ring-spun combed cotton/10% polyester. The softest most comfortable cotton shirt on the market great for high end clothing brands. Fit type: Classic. Primary brands used: District. NOTE: Classic fit is cut slightly smaller than a Basic Unisex Cotton Tee.

Sizing Chart: Adult Ring Spun Fine Jersey Tee

S M L XL 2X 3X 4X
Width 19" 20" 21.5" 23.5" 25.5" 27.5" 29.5"
Height 28" 29" 30" 31" 32" 32.5" 33"


Measured across the chest one inch below armhole when laid flat.


Measured from high point shoulder to finished hem at back.