Frequently asked questions

A soft sleeve that slips over the base of your bottle — cushions drops, helps stop dents and scratches, and (if it's a SiliSuit) looks way more cute than a plain black bumper.

Shark Bait is our shark-shaped boot: protect your adventure, Stay Sili.

Metal bottles dent when they tip over, hit the floor, or bang around in a bag. A thick silicone boot on the base takes the hit instead.

That's the whole SiliSuit idea — everyday protection that isn't boring.

Shark Bait (Medium) is sized for bottles with a diameter of 3.35–3.45 in (85–87 mm).

Confirmed fits include:

• Owala FreeSip 32 oz
• Yeti Rambler 26 oz
• Stanley IceFlow 36 oz
• Ello Flip & Fill 32 oz
• DSG Stainless Steel 32 oz

It does not fit Owala FreeSip 24 oz or 16 oz, Owala Sway, most Hydro Flask bottles/tumblers, or Stanley 40 oz tumblers.

Fit chart on the Shark Bait product page.

Yep. Hand-wash with mild soap and water, or put it in the dishwasher. Air dry afterward. Skip harsh chemicals or abrasive scrubbers so the silicone stays soft and stretchy.

Not yet — U.S. and U.S. territories only for now (we get asked this a lot!).

Follow @silisuit or join our mailing list and we'll let you know when international shipping opens up.

Shark Bait is the original SiliSuit — a silicone shark that hugs the bottom of your water bottle. Sized for bottles about 3.35–3.45 in (85–87 mm) across, including Owala FreeSip 32 oz and friends in that range.

Colors, fit chart, and more on the Shark Bait product page.

Depends which Owala. Shark Bait is built for the Owala FreeSip 32 oz (and bottles in that diameter range).

It does not fit Owala FreeSip 24 oz or 16 oz, or the Owala Sway — yet. More sizes are coming; follow @silisuit so you don't miss them.

Measure the outside diameter of your bottle near the base (not the lid).

If it falls between 3.35 and 3.45 inches (85–87 mm), Shark Bait should fit. When in doubt, compare against the confirmed list above or email a photo to support@silisuit.com.

Yes — we're on it. People ask about more bottle sizes all the time.

Follow @silisuit or join the email list to hear first when new sizes drop.

Double-check the fit list and diameter range on the product page — Shark Bait only fits bottles about 3.35–3.45 in across.

If it still doesn't work, email support@silisuit.com with your order number within 14 days of delivery and we'll help start a return.

Yep — that's SiliSuit. We bring creativity and personalization to everyday hydration with fun silicone water bottle boot designs like Shark Bait — a boot shaped like a shark.

Another SiliSuit character is coming. Vote for what you want to see on our Contact page.

Yes — another SiliSuit character is coming. We're always collecting ideas for new designs and colors.

Vote and send ideas on our Contact page, or jump to the vote.

If your order hasn't shipped yet, email support@silisuit.com and we'll do our best to cancel or update it.

Once it has shipped, we can't cancel — but you can still request a return after it arrives (see Returns below).

Orders are typically processed within 1–3 business days (weekends and holidays excluded). Delivery time after that depends on the shipping option you choose at checkout.

Once your order ships, you'll get a confirmation email with tracking. We currently ship within the United States and U.S. territories.

On the product page, pick your color and hit Notify me when back in stock — we'll email you when it's back.

Or follow @silisuit for restock drops.

You have 14 days after receiving your item to request a return. Items should be unused, in the same condition you received them, and in the original packaging.

Email support@silisuit.com or use our contact form with your order number.