ErgoFit by UltrAspire
The Perfect Fit Starts with the Design
Our ErgoFit designs optimize weight distribution, cooling, and movement.
Angled Straps
Angled straps distribute weight evenly and reduce pressure points, delivering a secure, comfortable fit mile after mile.
Ergonomic S-Curves
Ergonomic S-Curves mirror the body's anatomical shape, working with your natural running motion.
Low Center of Gravity
ErgoFit designs significantly improve stability by positioning the pack's weight lower and closer to your center of gravity.
Breathable Fabrics
Engineered with lightweight, performance driven fabrics, our packs are designed to actively wick sweat and moisture away from the body, keeping you both dry and cool.
On-The-Go Pockets
Our packs are built with efficiency and ease of access in mind. We've optimized on-the-go access by placing storage within reach.
Durable Materials
Our fabrics are selected for their high strength to weight ratio and strategically placed for maximum durability. Resistant fabrics withstand abrasian. Reinforced panels strengthen high stress points.
Stay cool. Perform better.
The UltrAcool system is a collection of technologies designed to dissipate heat.
When the human body exerts force, 80% of the energy is converted to heat. The hotter you are, the worse you perform. Our UltrAcool System is a collection of technologies designed to dissipate heat and keep you cool. This system allows you to maintain a lower body temperature by dispersing heat during intense activity, keeping you performing at the highest level.
Small Footprint
UltrAcool thermally optimized designs minimize contact with the body while maintaining a secure fit. Our packs maximize breathability while covering only what is necessary to keep them stable.
MaxO2™ Closure System
Our MaxO2™ Closure Systems promote a comfortable & natural breathing pattern while maintaining stability. Stretchy adjustable shock cords improve comfort while keeping the pack snug against the body.
