Here you will find some vintage advertisements for Bike Jockstraps.  Originally the Bike Jockstrap was called the Bike Jockey Strap Suspensory.

The above picture is an early example of a package for the Bike Jockey Strap Suspensory.

Basketball star Charles "Chuck" Taylor, shown here in a 1921 photo, exhibits a very 21st century attitude toward displaying his jockstrap. Note the waistband of what appears to be a Bike No. 10 supporter protruding above his shorts. Taylor was best known for his association with the Chuck Taylor All-Stars sneaker.

In 1927, men could buy either the Bike No. 55 Elastic Supporter, the Bike No. 17 Elastic Supporter, or the Bike Wide Waist Supporter from the Sears, Roebuck and Co. catalog for only 34¢, 48¢ and 62¢ respectively. Notice the "Supporter and Protector for Basket Ball, Football and Baseball" on the left. The "Jersey knit pouch contains a light aluminum guard."   The supporter and protector cost $1.89 in 1927.

The Bike No. 55 Elastic Support reads "Made of find elastic with attractive woven strip.  V seam front allows greater elasticity.  Medium sizes, 30 to 38 in. waiste measure, large sizes 40 to 44 in.  State size, shipping weight 5 ounces.  Cost  34¢.

Another ad for Athletic Elastic Supporters from the 1927 Sears, Roebuck and Co. catalog included the "Improved Chicago Snap Front" and "The Strap Supporter," both made for Sears by Bike.   "The Strap Supporter" cost 39¢ and the ad read "Recommended for athletes and swimmers.  Light, cool, and comfortable.  Fits well, no buckles or narrow bands to cause discomfort.  Made of good quality elastic webbing.  The "Athletic elastic supporters improved Chicago Snap Front" cost 79¢ in 1927.

Page from Schmelzer's Sporting Goods catalog shows the Bike No. 28 Jock Strap Suspensory (50¢); the Open Mesh Supporter (40¢); Schmelzer's "Athletes" Support (75¢-$1.50); and the Old Point Comfort Suspensory (75¢-$2.25).

"Supporter WILT is Dangerous!" Magazine ad from 1941 showing that the Bike No. 5 and 55 supporters prevent "dangerous supporter wilt."

Bottom portion of a WWII poster from a Lincoln, NE museum showing the importance of keeping fit for the war effort. Produced by the Bike Web Manufacturing Co., it reminds young men to "Get enough sleep, Eat Balanced Diet, Get Plenty of Fresh Air, Take Regular Excercise...and when you engage in safe..wear the proper support."

These Bike jock ads appeared in the 1948 and 1955 editions of the Boy Scouts of America Handbook.

This 1955 "Coaches and Trainers Handbook" from the Bike Web Company provided information on prevention and care of athletic injuries. It featured famous trainers of the day including Bill Dayton, Pinky Newell, Fred Peterson, Henry Schmidt, and Duke Wyre.

Some manufacturers bulk-pack supporters for school and team sales. This is the Bike No. 10 School Pack.   Vintage jockstraps like this can often be found on eBay.

This Bike jockstrap was worn by Boston Red Sox player Wade Boggs during spring training in Florida.

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