A breathable elastic fabric with a windproof BWR membrane was used at the front. The elastic back was made of a breathable fabric with the expanded ENERGY 210 thermal layer. The special fabric structure (with comfy fluff inside) helps to thermoregulate and drain the excess of perspiration to protect body from cold. Stretchy leggins fit the body giving the feeling of comfort and helping to increase the muscle work. In model BJORN 561S, breathable elastic mesh braces keep the leggins in place while running. In model BJORN 561, there is a non-pressure elastic waistband with a string. The removable stirrups were placed under the feet to protect ankles and Achilles tendon from cold and injuries. The stirrups are delicate and resistant. The high fabric quality (high elasticity) was used to make wearing comfortable without adding extra zippers. The leggins are equipped with one zippered pocket and two pockets with an elastic. Flat seams prevent skin irritations. HIGH VISIBILITY reflective elements located at the front, back and sides add high visibility whilst on the road. Designed for cool and cold days.
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| WINDPROOF is a fabric with a BWR membrane that is delicate, windproof, waterproof and breathable. It drains the excess of perspiration easily giving comfort during physical effort. | |
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ENERGY 210 fabric is elastic, fits the body, provides perfect isolation and protects from wind. |
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SILVER ION in the structure of the material ensure the hygiene and comfort without unpleasant odors. Anti-allergic, permanently prevent movement of bacteria from the material to the skin. |
- model 561 - an adjustable waistband
- model 561S - mesh braces
- flat seams
- windproof insets at the front
- removable stirrups (a band that loops under the foot)
- three pockets (one zippered pocket)
- HI-VIS reflective elements
- made in Europe according to strict European standards












| Size | Height | Chest measurement | Neck measurement | High waist measurement | Hip measurement |
| XS | 156-164 | 84-88 | 35 | 68-74 | 82-88 |
| S | 162-170 | 88-92 | 37 | 74-78 | 88-94 |
| M | 168-176 | 92-98 | 39 | 78-84 | 94-100 |
| L | 174-180 | 98-106 | 41 | 84-92 | 100-108 |
| XL | 178-184 | 106-112 | 43 | 92-102 | 108-116 |
| XXL | 182-188 | 112-120 | 45 | 102-112 | 116-124 |
| XXXL | 186-192 | 120-124 | 47 | 112-120 | 124-132 |