IONIonic SS MERINO - MTB jersey - Men's

On an alpine singletrack at 2,000 meters or a forest trail in the heat, managing heat and sweat makes all the difference between a good ride and a long, uncomfortable day. The IONIC SS Merino MTB jersey by ION rises to this challenge with a composition of 50% RWS certified merino wool: a natural fiber that actively regulates body temperature, absorbs moisture without saturating, and naturally resists odors, even over consecutive days. The remaining 50% of recycled polyester provides lightness, quick-drying, and dimensional stability wash after wash.

Contrary to common perceptions about wool, the merino here does not itch: the fabric is exceptionally soft against the skin, without the irritation associated with traditional wools. The loose MTB fit allows the shoulders and arms to move freely, whether negotiating a tight turn or getting up after a challenging section.

The RWS (Responsible Wool Standard) certification ensures that the wool comes from responsible farms, with attention to animal welfare and sustainable land management. The recycled polyester completes a composition that minimizes its impact without sacrificing performance.

• 50% RWS certified merino wool — softness, thermal regulation, and natural moisture management

• 50% recycled polyester — lightness, quick-drying, and durability

• Natural odor resistance — freshness maintained on long rides and bikepacking trips

• No itching sensation — superior softness compared to traditional wool

• Loose MTB fit — total freedom of movement on all types of trails

• Quick-drying — comfort maintained even with heavy sweating

• Long-lasting — retains its shape wash after wash

• RWS & mulesing-free certification — wool from responsible farms

• Main material: 50% Merino Wool · 50% Recycled Polyester

• Usage: trail, singletrack, bikepacking, MTB hiking