Meet the BIRKENSTOCK Oswego. The perfect casual slip-on shoe. With a flexible rubber sole and extra padding, stay comfortable all day long. Take these sporty shoes anywhere and everywhere. The upper is made from smooth canvas and soft suede.
- Removable, anatomically shaped cork-latex footbed
- Upper: canvas, suede
- Footbed lining: suede
- Sole: natural rubber
- Made in Portugal
Upper: Combination
Combination of open-pored, flexible suede and high-quality, untreated natural leather.
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: Rubber
Because of its high elasticity rubber is very well suited for outsoles. Thanks to this property it supports the natural rolling motion of the foot. Rubber is also very robust and has good cushioning.
The Original Birkenstock Footbed
A legendary design
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.
Deep heel cup
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.
Heel mould
Activates the calf muscles, stabilises the back of the foot and improves gait and coordination.
Interior and exterior longitudinal arch supports
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.
Transverse arch support
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.
| Weight | 1.5 lbs |
|---|---|
| Color | Midnight Blue, Sandcastle |
| Gender | Men, Women |
| Size | 10-10.5, 11-11.5, 12-12.5, 13-13.5, 5-5.5, 6-6.5, 7-7.5, 8-8.5, 9-9.5 |
| Width | Medium/Narrow |
Fitting Guide
FITTING AND ADJUSTING TIPS
SIZING
How to measure your foot length
- Stand with the heel to a wall and put a measuring tape under your feet
- Read off the measured foot length in millimeters before your longest toe
- If you are between two sizes, choose the next higher, because feet are minimally greater under load
Birkenstock products are offered in European sizes. Please reference our Size and Width conversion charts below. You can determine your Birkenstock size by adding 31 to your U.S. women’s size and 33 to your U.S. men’s size.
Your feet should be able to move freely without your toes hitting the edge of the footbed.
| Size Conversion Chart | |||||
|---|---|---|---|---|---|
| Women | Men | Kids | |||
| U.S. Size | Birkenstock Size | U.S. Size | Birkenstock Size | U.S. Size | Birkenstock Size |
| 4 - 4 1/2 | 35 | 7 - 7 1/2 | 40 | 6 - 6 1/2 | 24 |
| 5 - 5 1/2 | 36 | 8 - 8 1/2 | 41 | 7 - 7 1/2 | 25 |
| 6 - 6 1/2 | 37 | 9 - 9 1/2 | 42 | 8 - 8 1/2 | 26 |
| 7 - 7 1/2 | 38 | 10 - 10 1/2 | 43 | 9 - 9 1/2 | 27 |
| 8 - 8 1/2 | 39 | 11 - 11 1/2 | 44 | 10 - 10 1/2 | 28 |
| 9 - 9 1/2 | 40 | 12 - 12 1/2 | 45 | 11 - 11 1/2 | 29 |
| 10 - 10 1/2 | 41 | 13 - 13 1/2 | 46 | 12 - 12 1/2 | 30 |
| 11 - 11 1/2 | 42 | 14 - 14 1/2 | 47 | 13 - 13 1/2 | 31 |
| 15 - 15 1/2 | 48 | 1 - 1 1/2 | 32 | ||
| 16 - 16 1/2 | 49 | 2 - 2 1/2 | 33 | ||
| 17 - 17 1/2 | 50 | 3 - 3 1/2 | 34 | ||
| Note: Birkenstock Footwear is made in European sizes | |||||
narrow 
regular | Women's Widths |
Mens's Width |
||
| Regular/Wide: American width equivalent C-D |
Regular/Wide: American width equivalent D-EE |
||
| Medium/Narrow: American width equivalent A-B |
Medium/Narrow: American width equivalent B-C |
ADJUSTING
Before trying them on, put one hand under the toe and one under the heel, then flex the footbed a few times. This will initiate the break in period and will help your new sandals feel comfy sooner.
Open all straps and step into the footbed. Close the straps comfortably, leaving enough space to allow your feet the freedom of movement. Exhale and enjoy.
WEARING
For the first five or six times you wear your new footwear, limit the time to just a few hours. This allows your feet and body to gradually get used to the contoured arch support as well as the straps and buckles.
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