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Two slim, reusable gel ice packs in Monster & Shark fabric sleeves that keep packed lunches cold for 4–6 hours without the soggy sweat.
Product Description
The Yumbox No-Sweat Gel Ice Packs 2-Pack keep packed lunches cold without the puddle—two slim, reusable gel packs tucked into soft Monster & Shark fabric sleeves that help cut down on condensation inside the lunch bag.
Yumbox says the packs keep food chilled for 4–6 hours, and longer inside an insulated lunch bag. They are thin enough to slide in beside a bento box or along the back of a lunch tote, so the cold goes where the food is without taking up the room the food needs.
Why Parents Love It
- No more soggy lunches: The fabric sleeves help reduce the condensation that soaks sandwiches, crackers, and napkins.
- Cold until lunchtime: Yumbox rates the packs to keep food chilled for 4–6 hours.
- Two in every set: Use one in each lunch bag, or keep a spare in the freezer for busy mornings.
- Slim fit: At roughly 6.9 × 4.3 × 0.4 inches, they fit Yumbox lunch bags and most standard lunch totes.
- Prints kids recognize: Monster and Shark sleeves make it easy for kids to spot their own pack—and to remember to bring it home.
Built for Real Outdoor Use
Lunch at outdoor school rarely happens at a table. It happens on a log, a tarp, or the edge of a garden bed, sometimes hours after the bag was packed. A cold, dry lunch bag means yogurt that is still cool and sandwiches that are not soggy when it is finally time to eat.
The same set comes along for the rest of the week, too: field trips, camp days, playground picnics, and car-trip snacks. Pack it, freeze it, and grab it again tomorrow.
Things to Know
- Freeze flat: Yumbox recommends freezing the packs flat for the best performance.
- Cooling time: Yumbox lists 4–6 hours; an insulated lunch bag helps the cold last longer.
- Two parts to clean: Hand-wash the fabric sleeves, wipe the gel packs clean, and air-dry before the next use.
- Size: About 6.9 × 4.3 × 0.4 inches (17.5 × 11 × 1 cm) per pack.
- Non-toxic gel: Yumbox describes the gel interior as non-toxic. As with any gel pack, keep it whole and out of reach of children who still put things in their mouths.
Product Details
- Product type: Reusable gel ice packs with fabric sleeves
- Brand: Yumbox
- Model: No-Sweat Gel Ice Packs in Fabric Sleeves
- Print: Monster & Shark
- Included: 2 gel ice packs and 2 removable fabric sleeves
- Dimensions: Approx. 6.9 × 4.3 × 0.4 in (17.5 × 11 × 1 cm)
- Cooling time: 4–6 hours (Yumbox)
- Fits: Yumbox lunch bags, coolers, and most standard lunch totes
- Care: Hand-wash sleeves; wipe packs clean; air-dry
Why ODSS Recommends It
ODSS recommends the Yumbox No-Sweat Gel Ice Packs for families packing lunch for long days outside. They are the small piece that makes the rest of the lunch work: cold food, dry bags, and fewer soggy surprises at the picnic blanket.
We especially like the sleeves. They keep the condensation in check, and a shark or monster print is a lot harder to leave behind on the trail than a plain blue block.
Product Features
Materials & Care
Washing Instructions:
Materials:
Country of Origin: Imported
Style No: #MSIP20252
Pairs well with

Frequently Asked Questions
How long do these ice packs keep lunch cold?
Will they make my child's lunch bag wet?
Will they fit in my child's lunch bag?
How do I clean them?
How should I freeze them?

FOUNDED BY WOMEN. BUILT FOR ADVENTURE.
ODSS was started by mothers who saw firsthand how time outside builds resilient, confident kids. What began as helping outdoor schools equip students for all-weather learning grew into a bigger mission: Help families raise resilient, confident kids by making it easier for children to stay outside longer.
Testimonials
For us, the right gear from ODSS supports what we believe most about childhood. When children are able to be outside every day, in all seasons, they become tenacious, confident, and develop an authentic relationship with the land.
— RAIN OR SHINE SCHOOL
Working with Outdoor School Shop has transformed our outdoor school community. Parents love knowing their children are consistently and reliably equipped—and that nothing is forgotten or comes home covered in mud.
— RANDOLPH SCHOOL
Our students get outside in all temperatures and having the right gear makes a world of difference. @outdoorschoolshop has gear appropriate for all seasons, has a directory to search for nature schools, and layering guides to help families know how to dress children for the weather
— HEMLOCK HILL
At The Thistle and Root, I always recommend ODSS gear for anyone who believes that children grow best through nature—so dress for it.
— THISTLE & ROOT
Ordering bulk with Outdoor School Shop was just as easy and seamless as I had hoped! As we open up a new program, preparing our first group of kiddos for any weather was at the top of our priority list, and ODSS came through with insight, expertise, and the coolest, most dependable gear around! Thank you ODSS!
— SIDNEY RIDGE

