A640 Polyurethane
A640 Steel Toe
Polyurethane
- Removable contoured cork-latex footbed, washable at up to 86°F
- Durable PU upper
- Suede footbed lining helps keep you comfortable
- High traction PU sole
- Steel toe cap (200 joules)
- A630 / A640 Replacement Footbed
Frequently bought together:
Item no. 0020292
Upper: Polyurethane
Polyurethane, also known as PU, is a synthetic material ideally suited for use outdoors. The material is water-repellent and dirt-resistant and extremely easy to care for.
Insole: Natural leather
Natural leather can be recognized by its untreated surface. BIRKENSTOCK purposely does not treat surface grains and other characteristic features. BIRKENSTOCK uses sturdy leather with a thickness of 2.8 to 3.2 millimeters as upper material.
Footbed material: Cork
Cork is a sustainable material extracted from the bark layer of the cork oak. This natural product is insulating and offers very good cushioning.
Outsole: Polyurethane
Polyurethane, also known as PU, is a synthetic material ideally suited for use outdoors. It is water-repellent and dirt-resistant and very easy to care for.
configured by 3PI
A640 Steel Toe
The Original Birkenstock Footbed
The heart of all models is the original BIRKENSTOCK footbed. The construction, which has been thought out to the smallest detail and makes it feel like you're standing in sand, helps your feet feel as comfortable as possible for hours on end. This supports health and promotes wellbeing.
The very deep molding in the heel area supports the foot tissue and holds the heel bone firmly in its natural position. This provides the foot with nearly as much support when it is in a sandal as when it is in a closed shoe.
Activates the calf muscles, stabilises the back of the foot and improves gait and coordination.
The arch supports that run alongside the sides of the footbed surround the tarsal bones inside and out. This gives the foot the stability it needs when it takes a step.
The support that runs through the middle of the footbed stabilizes the metatarsal bone. In this way, the transverse arch support helps ensure that the foot has a naturally straight and solid stance.
There are raised indentations at the front of the footbed near the toes. Thanks to the toe grip the toes remain loose and spread out in their natural position. The indentations also support the natural rolling motion of the toes.
The footbed is drawn up especially high at the front. As a result, the high footbed edge protects the toes during the rolling motion of the foot.