Coolth_sl
The bio-fiber with build-in air conditioning
Our next-generation fibre COOLTH_SL is created from cotton linters, the short filaments that envelop the seed. Smoothness and extraordinary cooling power are the characteristics that make this fibre unique.
Absorbs moisture to keep you cool
COOLTH_SL is a highly hygroscopic fibre, which means it has the natural capacity to absorb moisture produced by the body and leave the skin cool and dry.
Low abrasion for smooth movement
The fibre features an almost perfectly round cross-section and a smooth surface. That is why it feels so gentle and supple on the skin.
Biodegradable and compostable
COOLTH_SL comes from nature and returns to nature at the end of its life cycle.
Shop UYN® products made with CoolTh_Sl
  • Kapok
    The vegetable wool
  • Flexycorn
    The sustainable alternative to elastane
  • Ecolypt
    Keeps you sweat and oder-free
  • Biolight
    Beech fibre, durable and breathable
  • Natex
    From castor oil seeds
  • Coolth_sl
    The bio-fiber with build-in air conditioning