Does anyone know where I can get men's bike shorts?

REI has a pair of Pearl Izumi Quest Bike Shorts selling for $50.00

• Blending nylon and spandex, SELECT Transfer fabric combines excellent stretch with cool comfort, using quick-drying hydrophobic yarns
• 6-panel construction eliminates the inseam and potential pressure points and conform nicely to body curvature
• Seamless 3D Tour chamois features 13mm of varible densities of contoured padding to preclude friction points and protect key areas
• Pressure Relief Technology gender-specific chamois reduces pressure points with differentiated padding levels and wicks moisture away from skin
• Chamois features an antimicrobial finish that helps control odors
• Fusion technology bonds the dual-density padding to eliminate seams and thereby increase comfort
• Silicone grippers at leg hems hold the shorts in position
• Fabric provides UPF 50+ sun protection, shielding skin from harmful ultraviolet rays

Overstock has ETA Men's Cycling shorts selling for $83.99
ETA (Evergreen Technical Apparel) men's cycling shorts feature a multi-density seamless pad for miles of comfort on short and long rides. Designed to conform to your body, the bicycle shorts feature superb leg grippers to hold the shorts in place, and an elastic waistband.

• WHP EIT chamois tapers from 11mm to 8mm to provide more padding without adding bulk
• Six-panel construction hugs your body
• Power Lycra ensures superior muscle compression and top-notch comfort on rides
• Flat-lock seams eliminate chafe points
• Reflective logos on front and rear

• Color: Grey/red
• Material: 100-percent polyester
• Hand wash