Free Shipping on Orders $89+ With Code: SHIP89. See Details.
BioStep
BioStep 4.000000 5 Average Rating: 4.0 out of 5 stars.
4.0 out of 5 stars.

Average BioStep Review  (based on 25 reviews)

Read All BioStep Reviews
  • 4.0 out of 5 stars. Sizing Incorrect
    Reviewed by Taters from Washington on Friday, May 8, 2026
    I really like these, but I am very disappointed in the way the sizes were listed. I wear a size 40 (9-9.5) in Birkenstocks, but the size chart on these said 40 was size 10 and 39 was 9-9.5. I ordered three pairs, and they were all too small. Great shoes, but go with your regular European size, not what the sizes on Sierra say! Now I have to wait for the replacements in the correct size.
    0 comments Leave a comment Helpful (0) Flag inappropriate
  • 4.0 out of 5 stars. Sizing Incorrect
    Reviewed by Taters from Washington on Friday, May 8, 2026
    I really like these, but I am very disappointed in the way the sizes were listed. I wear a size 40 (9-9.5) in Birkenstocks, but the size chart on these said 40 was size 10 and 39 was 9-9.5. I ordered three pairs, and they were all too small. Great shoes, but go with your regular European size, not what the sizes on Sierra say! Now I have to wait for the replacements in the correct size.
    0 comments Leave a comment Helpful (1) Flag inappropriate
  • 4.0 out of 5 stars. Sizing Incorrect!!
    Reviewed by Taters from Washington on Friday, May 8, 2026
    I really like these, but I am very disappointed in the way the sizes were listed. I wear a size 40 (9-9.5) in Birkenstocks, but the size chart on these said 40 was size 10 and 39 was 9-9.5. I ordered three pairs, and they were all too small. Great shoes, but go with your regular European size, not what the sizes on Sierra say! Now I have to wait for the replacements in the correct size.
    0 comments Leave a comment Helpful (1) Flag inappropriate
BioStep Outlet: Due to limited quantities, not all products are available in our Retail Stores.
BioStep Overstocks: inventory too high, had to be drastically reduced -- always first quality. Find out more about overstock items.
BioStep Closeouts: may be last year's model or color -- always first quality. Find out more about closeouts.
BioStep 2nds: Cosmetic Blems or Irregulars. Minor cosmetic blemishes or slight irregularities which do not affect the fit, performance, or longevity of the item. Label is usually clipped or marked by the manufacturer. A small flaw means big savings. Find out more about 2nds.