LEATHER LINING - Lowa Boots

OUTDOOR FOOTWEAR
WITH INNER ATTRIBUTES
LOWA’s special leather lining is perhaps best defined as ‘natural air conditioning for your feet’. We only use
the highest quality raw materials for our leather lining, and the best tanning processes that are kind to the
skin. In this way, the heat (and sweat) produced within the footwear is directed away by the leather lining,
leaving a pleasant internal wear climate.
TÜV Rheinland tested our leather lining in line with DIN EN ISO 20344 standards.
The results were as follows:
1. Moisture vapour permeability (mg/cm 2 ): 2. Moisture vapour absorption (mg/cm 2 ):
Target value 20,0 mg/cm 2
¬ Excellent wear comfort: smooth yet retains its shape
¬ Healthy internal wear climate: air and moisture vapour permeable
¬ Dry feet: high levels of moisture absorption and moisture vapour release
¬ Constant temperature: warmth retention adapts to ambient external climate
¬ Very durable: hard-wearing, flexible, tear and abrasion resistant
Target value 2,0 mg/cm 2
12,3 mg/cm 2
9,1 mg/cm 2 SUEDE
3,5 mg/cm 2 FULL GRAIN LEATHER
Moisture vapour absorption mg/cm 2
LOWA
COWHIDE NAPPA
LEATHER
9,1 mg/cm2h
111,9 mg/cm 2
81,50 mg/cm 2 SUEDE
35,9 mg/cm 2 FULL GRAIN LEATHER
LOWA
COWHIDE NAPPA
LEATHER
The natural material with high-tech qualities: LOWA COWHIDE NAPPA LEATHER
As a lining material, leather naturally has many of the qualities that high-tech fabrics require extensive
development to achieve. LOWA uses only the very best cowhide nappa leather, which is particularly high
performance.
The leather is not dyed, nor is its surface treated in any way, so that the pores remain open and the leather
can breathe. Its moisture absorption level is up to 200% of its own weight. This is only achievable by using
special tanning methods.
LOWA uses soft cowhide nappa leather that originates in Germany and is 1 - 1.5 mm thick.
0 3 6 9 12 15
Moisture vapour permeability mg/cm 2
3. Moisture absorption in 4 hrs: 114,8 mg/cm 2 Target value: min. 70 mg/cm 2
Water release in 24 hrs: 99 % Target value: min. 80 %
Water uptake = absorption of sweat/moisture
Water release = drying out
4. pH-value: 3,45 Target value > 3,2
If the pH-value is lower than 3.2 the leather will age more quickly
0 20 40 60 80 100 120
5. Abrasion resistance: (Points system from 1 – 5 where 1 = fail and 5 = excellent)
5 points
4 points
3 points
2 points
1 points
0
dry wet sweaty
100 abrasion cycles 50 abrasion cycles 20 abrasion cycles
Target value: 3 points