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KNKG CORE Collection — Gym Bags with the Iconic Weightlifting Belt Attachment
Built for those who train hard and pack smart. The KNKG CORE Collection is defined by its iconic external weightlifting belt attachment — a feature that sets us apart for functionality, space efficiency, and performance. Combined with premium materials and smart organization, CORE bags deliver quality you can feel in every rep, session, and trip.
The Weightlifting Belt Attachment
Designed with lifters in mind, the external weightlifting belt sleeve frees up interior space while keeping your belt secure and easy to access. Reinforced webbing and heavy-duty stitching mean your belt stays locked in place during commutes or travel, without dragging down the rest of your gear.
- Functional: Carry your belt without sacrificing internal storage.
- Durable: Reinforced straps and webbing built to handle heavy use.
- Efficient: Keep essentials organized inside while your belt stays outside.
- Trusted: KNKG has become known for this signature feature, making it a staple among lifters, powerlifters, and CrossFit athletes.
Durable by Design
Every CORE bag is built from premium materials to withstand serious training and daily carry:
- 500D nylon body material with PVC backing for water resistance
- Heavy-duty YKK zippers
- Ripstop nylon lining for durability
- Reinforced nylon webbing straps and handles
Choose Your Size
- Mini CORE Duffel (15L) – Compact and lightweight, ideal for daily training or minimalist carry.
- Medium CORE Duffel (35L) – Balanced capacity for gym gear, work kit, and daily essentials.
- Large CORE Duffel (51L) – A serious hauler for heavy lifting days or travel.
- Mini CORE Backpack (13L) – Slim and compact, designed for essentials and lighter training loads.
- Medium CORE Backpack (25L) – Everyday all-rounder with compartments for gym gear, laptop, and daily carry.
- Large CORE Backpack (33L) – Extra capacity and structure for lifters or travelers who need more room.
- Waxed Canvas Duffel (35L) – Rugged and water-resistant with a classic patina finish.
- Waxed Canvas Backpack (25L) – Durable, weather-ready, and built to age uniquely over time.
Waxed Canvas Options
For athletes who want performance with heritage styling, the Waxed Canvas Duffel (35L) and Waxed Canvas Backpack (25L) deliver the same CORE functionality with added benefits:
- Water-resistant finish that protects against sweat and weather
- Durable build that softens and strengthens with use
- Unique patina effect — every bag ages differently, creating a one-of-a-kind look
Why Choose CORE?
- Iconic external weightlifting belt attachment trusted by lifters worldwide
- Premium materials: 500D nylon, YKK zips, ripstop lining, reinforced webbing
- Available in both duffels and backpacks, 13L to 51L
- Waxed canvas editions for timeless style and weather resistance
- Warranty-backed craftsmanship — built tough, built for life