Sisu is Finnish for bravery, strength and fortitude. Baltic Blue Sisu socks keep feet warm through rain, hail, snow or ice — built as versatile socks for hiking, outdoor adventures and cold arctic nights, with plenty of backbone for tough outings.
Why these socks
- Named for Finnish grit — a tougher hiking and outdoor feel
- Soft wool blend that still holds shape
- Baltic blue colour with Nordic character
- Suitable for hiking, cold snaps and slipper wear
Best for: hiking, icy outdoor walks, cold snaps, and slipper wear after a long day.
Composition: 51% Cotton, 30% Wool, 18% Polyamide, 1% Elastane
Care: Wash at 30°–40°. Do not tumble dry.
There is no such thing as bad weather, only bad socks.
FAQ
What does Sisu mean?
Finnish for grit, bravery and fortitude — the spirit these socks are named after.
Slipper sock or walking sock?
Both — warm enough as a slipper sock and versatile enough for hiking and outdoor wear.
Unisex?
Yes across standard UK and EU sizes.