Anfibio Jason boots: waterproof full-grain leather with sealed seams, full natural wool lining. Back zip for a quick fit, slip-resistant Italian sole. Mid-calf shaft (25.4 cm). Handmade in Quebec.
TECHNICAL DESCRIPTION
Boots EXTREME COLD Men's Jason — Anfibio
PROTECTIONExtreme Cold
SHAFT HEIGHT25.4 cm
INSULATIONNatural wool
THERMAL PROTECTIONUp to −30 °C*
ClosureInterior Side Zip
A mid-calf shaft built for the worst storms, the warmth of a wool lining
Made in Canada, the Jason pairs waterproof full-grain leather with sealed seams and a full natural wool lining, able to keep the foot warm through a full day in the snow. The interior side zip simplifies putting on a 25.4 cm mid-calf shaft. The Italian sole gives reliable grip on winter ground.
The Grand Froid expert's view
In Quebec, you don't design a boot for the winter you imagine — you design it for the one you've already lived through. The Jason comes from people who know exactly what a real storm does to a poorly protected foot: sealed seams, full wool lining, a shaft tall enough to cover the calf. Nothing here is for looks — every piece is there because someone needed it on a brutal winter day.
What are they for?
The Jason suits the toughest winter days, in town or in the countryside.
Intense daily use: outdoor work, repeated commutes, full days outdoors
Deep snow: the mid-calf shaft protects the lower leg from build-up
Static outdoor activities: markets, waiting around, cultural outings — prolonged standing exposes you to the cold in particular
Frozen ground and packed snow: slip-resistant Italian sole for reliable grip
Thermal protection
Wool traps warm air around the foot while the leather keeps outside moisture out. With a knee-high sock, the Jason closes the gap at the top of the shaft; with a shorter sock, the interior zip becomes the one point worth checking for a snug fit that keeps cold air out.
Technical specifications
Genuine waterproof full-grain leather
Sealed seams
Full natural wool lining
10 mm wool insole
Functional interior side zip
Slip-resistant Italian sole in thermo-rubber
Handmade in Quebec by artisan bootmakers
Water resistance holds as long as the leather and seams stay in good condition — prolonged immersion is not recommended.
Composition
Wool — inner lining
Leather — waterproof upper
Commitments
6-month warranty against manufacturing defects
Size guide
How to measure: measure your foot from heel to longest toe, standing up, wearing socks, weight evenly distributed on both legs. If between two sizes, choose the larger one.
Foot length → Recommended size
10.6 in
EUR 41
10.8 in
EUR 42
11.1 in
EUR 43
11.4 in
EUR 44
11.6 in
EUR 45
Regular width, neither narrow nor wide — foot circumference from 24.0 to 26.7 cm depending on size. Narrow or wide foot? Measure the widest part of your foot to check before ordering.
Size outside 41-45? Find the full range, 40 to 52, on the made-to-order version.
Care & Durability
Wipe leather with a damp cloth
Brush suede gently with a soft shoe brush and water
Dry away from any heat source
Use water only, no commercial cleaning products
Remove boots without pressing the heel counter with the other foot
Clean thoroughly before storing for spring
Return or exchange — 30 days
You have 30 days after receipt to request a return or exchange on this item.
Why choose these Anfibio Jason men's winter boots?
A shaft tall enough to cover the calf, sealed seams built to last, a wool lining doing its job with no zip or laces to check. The Jason bets on simplicity that holds up.
A foot that stays dry stays warm longer than a well-insulated but damp one.
* Indicative temperature. Actual comfort varies with activity, individual build, humidity, wind and base layers worn.
