Technical Fabrics & Materials Used in On-Line Clothing
We select technical fabrics according to the intended use of each garment – from breathable base and mid layers to durable outdoor fabrics and waterproof materials for whitewater and professional rescue clothing. Our material choices are based on performance, durability, comfort and the experience gained from developing and manufacturing technical clothing in Slovenia since 1992.
How We Build a Technical Layering System
A functional layering system combines materials with different roles. The base layer helps manage moisture and temperature, the mid layer provides insulation and breathability, while the outer layer adds protection from wind, precipitation and abrasion. We select each fabric according to the activity, expected conditions and the level of protection required.
How We Use Polartec® Power Stretch® Pro™
We use Polartec® Power Stretch® Pro™ in selected base and mid-layer garments where stretch, moisture management and durability are especially important. Its 4-way stretch allows a close fit without restricting movement, while the dual-surface construction helps move moisture away from the body during active use.
The reinforced outer surface also provides greater abrasion resistance than conventional stretch fleece, making the material well suited for technical clothing used for hiking, kayaking and other demanding activities. In our layering system, Power Stretch® Pro™ works particularly well beneath waterproof shells and drysuits.
How We Use Polartec® Alpha®
We use Polartec® Alpha® in selected technical garments where high breathability, low weight and active insulation are important. Originally developed for demanding stop-and-go activity, Alpha® allows excess heat and moisture to escape more easily than traditional insulation while still providing warmth during active use.
In On-Line garments, Polartec® Alpha® is used as a lightweight insulating layer for activities where the body alternates between high output and lower-intensity periods. Its open construction works best as part of a layering system, combined with a suitable outer fabric that adds wind or weather protection when needed.
Waterproof & Breathable Fabrics for Drysuits
For our whitewater and professional rescue drysuits, we use waterproof and breathable laminated fabrics selected according to the intended use of each garment. The construction must provide reliable water protection while allowing moisture vapor to escape during active use.
Fabric choice also depends on the balance between weight, flexibility and durability. Whitewater drysuits require good freedom of movement, while professional rescue models use more robust materials and reinforced high-wear areas. Waterproof performance is completed by taped seams and waterproof zipper systems.