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Leak Proof Sips, Happy Moments.

Korea’s No.1 Toddler Straw Cup

946,000+

Cups sold annually

30+ Countries

Loved by Moms Worldwide

Patented tech

related to straw nipples

CPSIA Compliant

Tested by a CPSC - verified Laboratories

Zezebaebae
One of the Top 5 Best-Selling Toddler Straw Cup Brands on Amazon US
#1 Best-Selling PPSU Straw Cup

Over 8,000 Reviews ★ 4.5 out of 5.0 Rating
2025 Forbes The 8 Best Straw Cups For Babies Loved By Moms And Experts -
“Splurge-Worthy Cup That Rarely Leaks and Grows with them”

Stainless Steel

Stainless Steel is a high-performance material known for its exceptional durability and resistance to rust and corrosion. Commonly used in medical, food, and industrial applications, it is a safe and hygienic choice for various products. Stainless Steel is perfect for baby bottles, cups, and kitchenware as it does not absorb odor or color and maintains its quality even after repeated sterilization. Unlike plastic, it is unbreakable and highly resistant to temperature changes, ensuring long-lasting use. There is no better choice. Now, stainless steel products come in various finishes, from classic silver to modern matte black, offering both style and functionality. Try Grosmimi Stainless Steel.

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Weighted Spout kit

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
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Weighted Straw kit

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
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Straw Kit Stage 1

  • Age: +6m
  • Strength: Soft
  • Durability: Weak
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Straw Kit Stage 2

  • Age: +12m
  • Strength: Hard
  • Durability: Strong
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Stage2 Nipple only

  • Age: +12m
  • Strength: Hard
  • Durability: Strong
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We're answerable!

4.9
Rated 4.9 out of 5 stars
Based on 31 reviews
Total 5 star reviews: 29 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 0
97%would recommend this product
31 reviews
  • TD Profile picture for Tessa D.
    Tessa D.
    Verified Buyer
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (300ml)
    I recommend this product
    Baby's Age 6 Months - 2 Years
    Baby's Height 31.5 Inches to 36.5 Inches
    Rated 5 out of 5 stars
    1 week ago
    Stainless steel straw cup

    Love this cup, just what I was looking for regarding non plastic and temp controls. Toddler loves it. Would purchase another but very pricey! The design is quality though.

  • MG
    Mouna G.
    Verified Buyer
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (300ml)
    I recommend this product
    Baby's Age 6 Months - 2 Years
    Baby's Height 26.5 Inches to 31.5 Inches
    Rated 5 out of 5 stars
    2 weeks ago
    great

    Great

  • A
    Angeles
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (300ml)
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Es mi favorito me encantan los olivos

  • A
    Angeles
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (300ml)
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Mencanta el color la decoracion es hermosa

  • KI
    Katrina I.
    Verified Reviewer
    Reviewing
    Grosmimi Stainless Steel Straw Cup with Flip Top - 10oz (300ml)
    I recommend this product
    Baby's Age 6 Months - 2 Years
    Baby's Height 26.5 Inches to 31.5 Inches
    Rated 5 out of 5 stars
    3 weeks ago
    Truly leak proof

    This bottle is truly leak proof. We switched to the weighted straw, which has also been game changer. I love the swivel handles, so my toddler can grab and drink from this bottle at any angle.