Lightweight Performance Meets Bodybuilding Style
The Gymshark x Cbum Shorts are designed with one goal in mind: delivering maximum comfort and performance for serious training while still maintaining a clean, lifestyle-friendly look. Part of the “UNFINISHED” capsule collection by Chris Bumstead, the 6x Classic Physique Mr. Olympia champion, these shorts combine breathable athletic functionality with the physique-focused styling that has become synonymous with Cbum’s brand.
Available in Greyed Purple, Concrete Blue, and Black, the Gymshark x Cbum Shorts are built for both lifting and everyday wear. Featuring lightweight perforated fabric, a quad-friendly fit, and a classic 6-inch inseam, these shorts are clearly designed for athletes who prioritize mobility, comfort, and aesthetics.
At a price point of $62, they sit in the premium gym apparel category, but they offer a strong combination of performance features and versatile styling that make them stand out from standard training shorts.
Our team at Generation Iron got our hands on this product from the collection – and we’ll break it down so you can determine if this will make a new powerful addition to your wardrobe.
First Impressions
The first thing we noticed about the Gymshark x Cbum Shorts is how lightweight they feel. Gymshark describes them as their lightest Sport Shorts, and that claim feels accurate immediately after trying them on.
The perforated fabric gives the shorts an airy, breathable feel without making them appear thin or cheap. They are clearly designed for high-intensity training sessions where overheating and restricted movement become major issues.
Visually, the shorts maintain a very clean aesthetic. Unlike many modern gym shorts overloaded with logos and graphics, these feature minimal branding, giving them a more timeless and versatile appearance. The 6-inch inseam also hits a sweet spot for bodybuilding-focused training apparel. It provides enough coverage for comfort while still allowing athletes to show off quad development.
Fit and Sizing
Size & Fit
- Regular fit
- 6” inseam based on size Medium
- Wider fit for additional quad room
- Model is 5’10” wearing size Medium
The fit of the Gymshark x Cbum Shorts feels tailored specifically for lifters. The wider leg opening gives noticeably more space around the thighs compared to slimmer athletic shorts, which is a major advantage for bodybuilders and strength athletes with larger legs.
The regular fit prevents the shorts from feeling overly baggy while still maintaining enough looseness for unrestricted movement during exercises like:
- Squats
- Deadlifts
- Lunges
- Leg presses
- Dynamic athletic movements
The adjustable internal drawcord waistband also helps create a secure fit without feeling tight or restrictive.
Comfort and Breathability
Comfort is where these shorts really shine.
The breathable perforated fabric allows excellent airflow during training, helping prevent overheating during intense gym sessions. Even during heavy leg workouts or cardio sessions, the shorts remain light and comfortable rather than becoming heavy with sweat.
Key Comfort Features
- Super lightweight feel
- Breathable perforated construction
- Moisture-friendly airflow
- Stretch-friendly material blend
- Non-restrictive quad room
The fabric blend of 80% polyester and 20% elastane provides a good balance between durability, flexibility, and softness. The elastane content adds enough stretch for athletic movement without causing the shorts to lose structure.
Based on our experience, these shorts are especially ideal for:
- Bodybuilding workouts
- Leg days
- HIIT training
- Functional fitness
- Warm-weather training
- Casual summer wear
Performance in the Gym
The Gymshark x Cbum Shorts are clearly built with performance training in mind.
The lightweight design helps reduce distraction during workouts, while the shorter inseam improves mobility during compound lifts and athletic movements. Unlike heavier basketball-style shorts, these never feel bulky or restrictive.
The open side pockets are also practical without adding unnecessary bulk. They are large enough for essentials like:
- Phones
- Keys
- Wallets
- Gym cards
One underrated feature is the minimal branding. Because the design remains clean and understated, the shorts pair easily with oversized pump covers, tanks, hoodies, and compression tops.
Style and Versatility
One of the biggest strengths of the Gymshark x Cbum Shorts is their versatility.
They work well:
- In the gym
- During outdoor training
- For casual errands
- Around the house
- During recovery days
- As part of streetwear-inspired athletic outfits
The clean aesthetic makes them easy to style with almost any gym apparel setup. The Concrete Blue and Greyed Purple colorways offer a slightly more unique look, while the Black version remains the safest and most versatile option.
The shorts also perfectly match the overall aesthetic of the “UNFINISHED” collection by focusing on simplicity, functionality, and bodybuilding culture.
Build Quality
The overall construction feels premium compared to many standard gym shorts on the market.
The stitching appears durable, the waistband feels secure, and the lightweight perforated fabric does not feel fragile despite how breathable it is.
The shorts are clearly designed for repeated gym use while still maintaining a comfortable, lifestyle-oriented feel.
Product Specifications
- Material: 80% Polyester, 20% Elastane
- 6-inch inseam
- Regular fit
- Internal drawcord waistband
- Open side pockets
- Breathable perforated fabric
Pros and Cons
Pros
- Extremely lightweight feel
- Excellent breathability
- Quad-friendly fit
- Comfortable 6-inch inseam
- Great for lifting and lifestyle use
- Minimal branding for versatile styling
- Strong mobility during workouts
- Premium overall construction
Cons
- Premium price point at $62
- Shorter inseam may not appeal to everyone
- Minimal compression support
- Limited capsule collection availability
Final Verdict
The Gymshark x Cbum Shorts successfully combine bodybuilding functionality with modern athletic fashion. Their lightweight perforated fabric, breathable construction, and quad-focused fit make them an excellent choice for serious training sessions while still being stylish enough for everyday wear.
The 6-inch inseam creates a classic bodybuilding look without sacrificing comfort, and the clean minimal branding gives the shorts a timeless appearance that works far beyond the gym.
For lifters looking for premium gym shorts that prioritize mobility, breathability, and physique-focused design, the Gymshark x Cbum Shorts are easily one of the stronger releases in the current Gymshark lineup.
Let us know what you think in the comments below. Also, be sure to follow Generation Iron on Facebook, Twitter, and Instagram.
