Join the MightyFix – Ship Free + $5 off Get the Code

Sippy of Steel, Green

Members Log-in for FREE Shipping & Member Prices
Not a member? Learn More

Product Details

Most of the sippy cups on the market have hard plastic spouts or rubber spouts.  Thinkbaby Sippy Cups have soft silicone spouts, making an easy transition from baby bottles to sippy cups and reducing a struggle many parents face in moving to the next stage of feeding. With the Thinkbaby Sippy of Steel, the little one is already used to the feeling of a silicone spout, making the transition quite simple. Comes with Travel Top, which reduces chance of spillage during travel and protects the nipple from coming into contact with foreign substances.   

  • Free of Bisphenol-A (BPA), phthalates, nitrosamines, lead, PVC, PET, and biologically harmful chemicals
  • No spill spout with cross-cut design 
  • Perfect for 9 to 36 months 


  • Base is made of ultra-polished 304 stainless steel (18/8)
  • Collar is made of No. 5 plastic (polypropylene) and can be recycled after use 
  • Spout is made of extra soft, medical grade silicone


  • Thinkbaby Sippy Cups are dishwasher safe (top rack recommended). 
  • Before first use, sterilize the Sippy Cup in boiling water for 2 to 5 minutes 
  • The Sippy of Steel is NOT microwave safe. 

Made by thinkbaby

SKU: SteelSippyGR

What Others are Saying

mighty bird

Overall Score

MightyNest Trusted
About thinkbaby
thinkbaby's products address the growing concern over toxic chemicals leaching from plastic baby products. All products are free of Bisphenol-A, Phthalates, and Lead. thinkbaby operates with the singular purpose of protecting children during their most fragile developmental stages through extensive product testing and working with leading scientists globally

About MightyNest

We make it easy for families to create a healthy home. Each of our 1000+ products has been thoroughly researched to be free of concerning chemicals, and hand-picked for its quality and design. With products for the whole family, ranging from kitchenware to reusable lunch gear to skincare, it is truly better living made easy.