Introducing the Runyon Pump-You-Up™ 7" Sweatshorts — our modern performance update to the classic American sweatshort. Made from heavyweight 14 oz French Terry Tri-Blend, these versatile gym and running shorts combine soft cotton comfort with added stretch, moisture management and durability. Featuring Runyon’s original dual stash-pocket design and a comfortable 7-inch inseam, they’re built for strength training, cool-weather running, hiking, yoga, recovery and everyday wear.

Our Cotton Blend Workout Shorts

Made from 14 oz French Terry Tri-Blend — 50% Cotton, 40% Polyester and 10% Rayon — these athletic sweatshorts combine the familiar comfort of cotton with the performance benefits of a blended fabric. The result is a soft, durable and flexible training short designed for athletes who want a balance of natural-fiber comfort and modern performance.

The Tri-Blend construction makes these shorts a versatile choice for gym workouts, strength training, jogging, cool-weather running, hiking and everyday wear. Compared with our 100% cotton Pump-You-Up™ Sweatshorts, the Tri-Blend version offers additional stretch and a more performance-oriented feel while maintaining the classic comfort of French Terry.

French Terry - Back To That Old School Fabric Technology

French Terry has been used for generations in athletic and training apparel because of its distinctive loop-back construction. The soft interior loops help manage moisture while allowing the fabric to remain breathable and comfortable against the skin. Unlike traditional brushed fleece, French Terry is unbrushed on the inside, providing comfort without the heavier feel of a fleece interior.

Combined with the Tri-Blend construction, this heritage athletic fabric delivers a soft feel, comfortable stretch and durability for training, conditioning, recovery and everyday wear.

All About The Details + Original Design

The Pump-You-Up™ Sweatshorts feature Runyon’s original dual outside stash-pocket design, created to solve a common frustration with traditional gym shorts: phones and other essentials shifting, dangling or falling from loose inside pockets while sitting, lifting or moving through a workout.

The oversized side stash pockets provide convenient storage for a phone, keys, wallet, workout towel, water bottle and other essentials. At the gym, you can carry a water bottle in one pocket and a workout towel in the other while still having room for your phone and keys.

A rugged U.S.-made paracord drawcord and elastic waistband provide a secure, adjustable fit, while the 7-inch inseam delivers comfortable athletic coverage for strength training, running, hiking, travel and everyday wear.

Key Features:

• Original Dual Outside Stash Pockets — Designed to securely carry a phone, water bottle, workout towel, wallet, keys & other essentials
• 14 oz French Terry Tri-Blend — 50% Cotton, 40% Polyester & 10% Rayon
• Cotton-Blend Performance — Combines soft cotton comfort with additional stretch, durability & moisture management
• Designed, Engineered & Field-Tested by Endurance Athletes — Tested through strength training, running & everyday use
• Handcrafted in Los Angeles’ Historic Fashion District — Supporting American apparel manufacturing
• U.S.-Made Paracord Drawcord — Rugged and built to last
• 7-Inch Inseam — Comfortable athletic coverage for training, running & everyday wear

Please note: These sweatshorts are not pre-washed and will shrink slightly after the first wash. The dimensions in the Size Chart reflect the expected measurements after the first wash.

Designer Commentary

“These shorts have become one of my go-to choices for the gym, especially when the weather cools down. I wanted to create a modern sweatshort that retained the comfort of classic French Terry while adding the functionality I actually need for training.

The Tri-Blend French Terry combines cotton, polyester and rayon, giving the shorts a soft feel with additional stretch and performance compared with the 100% cotton version. Unlike brushed fleece, the loop-back interior doesn’t have the same heavy, fuzzy feel, which makes these comfortable for training as well as everyday wear.

I’ve also been surprised by how much I enjoy running in sweatshorts when the temperature drops. I’ve worn them regularly on 6–10 mile cool-weather and early-morning runs, and even took them on a 17-mile trail run reaching approximately 6,300 feet on a crisp, dry fall day. They warmed up some in direct sun during the climb but were especially comfortable when the temperature dropped and the breeze picked up on the descent.

They’ve also become a favorite for yoga and lounging because the French Terry is so soft. That versatility is really what I wanted from the design — something I could wear for strength training, take on a run and then continue wearing throughout the day.

Storage was another major focus. At the gym, I usually keep a water bottle in one stash pocket and a workout towel in the other, while still having room for my phone and keys. The pocket profile is adapted from our Warm-It-Up Jogger Sweatpants and redesigned in a shorter format for training and everyday use.

What makes the design different from traditional sweatshorts is the way the outside stash pockets carry your essentials. Your phone doesn’t feel like it’s dangling inside the leg or constantly trying to fall out when you sit down, lift or move around. It’s our update to the classic American sweatshort, designed around what today’s athletes actually carry.

We spent months developing and testing these shorts and went to considerable lengths to source American-made materials and components whenever possible, including USA-made textiles, elastic, paracord and woven labels. The shorts are then cut and sewn in Los Angeles’ Historic Fashion District.

That commitment represents what Runyon has been about from day one: supporting American manufacturing while creating performance apparel for an active community around the world.

I know you’ll love these shorts and can’t wait to watch them Pump-You-Up!

Tony Nuccio
Designer, Athlete & Founder