6 Hiking Backpacks Sized Right for Kids and Teens
The REI Co-op Tarn 18 Kids Pack balances comfort, storage and price for most families. Growing kids do better with the Osprey Jr. Comet’s adjustable torso, and multi-day hikers should look at the Deuter Fox 30 for its frame support and hydration sleeve.
A pack sized for an 8 year old rarely fits a 13 year old, which makes torso adjustability the real deciding factor here. The REI Co-op Tarn 18 Kids Pack, Osprey Jr. Comet and Deuter Fox 30 lead this list for fit, support and durability, each adjusting as kids grow so the pack doesn’t need replacing every season.
We compared torso length adjustability, hip belt padding, hydration compatibility and load capacity across current Amazon listings to narrow the field to seven packs. Recommended age ranges vary by brand, so checking the torso spec directly beats going by age alone.
Our top picks
REI Co-op Tarn 18 Kids Pack
An 18 liter main compartment fits a lunch, jacket and small first aid kit, sized for kids roughly 5 to 11 years old. A padded hip belt and sternum strap add stability, while mesh side pockets keep a water bottle within reach. Owners report the shoulder straps stay comfortable across multi-hour walks.
Pros
- Lightweight build reduces strain on small frames
- Padded hip belt improves weight distribution
- Reflective trim adds visibility on trail
Cons
- Main compartment lacks internal organization
- Not built for overnight loads
Osprey Jr. Comet
An adjustable torso system extends as a child grows, so one pack can last several seasons instead of one. A dedicated hydration sleeve holds up to 1.5 liters, and the ventilated back panel cuts sweat buildup on warm hikes. Unused straps tuck away rather than dangling loose.
Pros
- Torso adjusts as kids grow taller
- Ventilated back panel improves airflow
- Bright colorways help with trail visibility
Cons
- Slightly heavier than similar 18L packs
- Hip belt padding is thin for longer treks
Deuter Fox 30
A 30 liter main compartment holds a sleeping bag liner, extra layers and snacks for a two day hike. An internal frame sheet adds structure so the load doesn’t sag against a child’s back. The torso range suits kids around 10 to 15 years old.
Pros
- Internal frame keeps loads stable
- Larger capacity suits overnight trips
- Compression straps cinch down partial loads
Cons
- Bulkier than daypacks for short hikes
- Heavier empty weight than 18L options
Gregory Wander 38
A women’s-inspired harness shape fits the narrower shoulders common in teens, built for ages 8 to 14. The 38 liter capacity handles multi-day trips, and torso adjustment keeps pace with growth spurts. A removable top lid converts into a small hip pack for short outings.
Pros
- Removable lid adds standalone utility
- Torso adjustment accommodates growth spurts
- Capacity suits multi-day backpacking trips
Cons
- Largest and heaviest pack on this list
- Overkill for short day hikes
Teton Sports Scout 3400 Youth
An internal steel stay frame adds more structure than most packs at this price, paired with 34 liters of capacity. A rain cover ships included, useful on longer trails with unpredictable weather. Fit works best for kids around 11 to 16 years old.
Pros
- Included rain cover adds trail versatility
- Steel stay frame supports heavier loads
- Large capacity for the price point
Cons
- Heavier than most youth-specific packs
- Sizing runs better for older teens
Osprey Daylite Jr.
A single 13 liter bag doubles as a school bag and a light trail pack, suiting families who want one option for both. A front stash pocket holds a jacket without opening the main compartment. Staying under carry-on size limits makes it easy to bring along while traveling too.
Pros
- Doubles as school backpack and day pack
- Compact size fits carry-on luggage rules
- Front stash pocket speeds up access
Cons
- Too small for overnight gear
- No dedicated hydration sleeve
High Sierra Outburst
Basic day hike needs get covered here without the price of technical hiking brands. A padded laptop sleeve doubles as back support, useful for packing a hydration bladder against it. Casual trail walks suit it better than steep or technical terrain.
Pros
- Lower cost than dedicated hiking brands
- Padded sleeve adds back support
- Multiple pockets aid organization
Cons
- Hip belt is minimal for heavier loads
- Not designed specifically for youth torsos
Side by side
| # | Model | Capacity | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | REI Co-op Tarn 18 Kids Pack | 18 liters | Best overall | 9.4 | Check price |
| 2 | Osprey Jr. Comet | 18 liters | Best for growing kids | 9.2 | Check price |
| 3 | Deuter Fox 30 | 30 liters | Best for overnight trips | 8.9 | Check price |
| 4 | Gregory Wander 38 | 38 liters | Best for teens | 8.7 | Check price |
| 5 | Teton Sports Scout 3400 Youth | 34 liters | Best value | 8.5 | Check price |
| 6 | Osprey Daylite Jr. | 13 liters | Best for school and day hikes | 8.2 | Check price |
| 7 | High Sierra Outburst | 30 liters | Best budget | 8.0 | Check price |
What to look for
How Do You Size a Hiking Backpack for a Child? Match torso length, not overall height, when picking a pack size. Most youth packs list a recommended age range alongside an adjustable strap system, though the torso spec is the more reliable number to check. A pack that’s too long rides low and strains the lower back.
What Capacity Fits Day Hikes vs Overnight Trips? Day hikes rarely need more than 18 to 20 liters for snacks, water and a layer. Overnight trips call for 28 liters or more to fit a sleeping bag liner and extra clothing. Oversized packs invite overpacking, which adds unnecessary weight on a child’s back.
Which Features Matter Most: Hydration, Hip Belt and Visibility? A padded hip belt shifts weight off the shoulders and onto the hips, important for kids carrying gear over several hours. Hydration sleeves let a bladder sit flat against the back instead of sloshing loose in the main compartment. Reflective trim adds a safety margin on shaded trails.
When Should a Kid Move Up to an Adult-Sized Pack? Once torso length exceeds the youth range, usually around 16 or 17 inches, an adult pack fits better. Shoulder straps digging in or a hip belt riding above the hips are common signs. Renting an adult pack for one trip can confirm fit before buying.
Good to know
What size hiking backpack does a child need?
Most kids ages 5 to 11 do well with 15 to 20 liters, while teens on multi-day trips need 30 liters or more.
How do you fit a hiking backpack to a kid’s torso?
Measure from the base of the neck to hip level, then match that number to the pack’s listed torso range before adjusting straps.
Are youth hiking backpacks different from school backpacks?
Yes. Hiking packs add a padded hip belt, sternum strap and hydration compatibility that most school bags skip.
Can a hiking backpack grow with my child?
Packs with adjustable torso systems, like the Osprey Jr. Comet, extend several inches to fit multiple growth stages.
Do youth backpacks include a rain cover?
Some do, including the Teton Sports Scout 3400 Youth, though many packs sell a separate rain cover as an accessory.
What is the best hiking backpack for a first overnight trip?
The Deuter Fox 30 or Gregory Wander 38 both offer enough capacity and frame support for a first multi-day hike.
How heavy should a kid’s hiking pack be when loaded?
A general guideline keeps loaded weight under 15 to 20 percent of the child’s body weight.
Is a hydration bladder necessary for a youth pack?
It’s not required, but a hydration sleeve encourages kids to drink water more consistently on the trail.
Osprey Jr. Comet vs REI Co-op Tarn 18, which fits better long term?
The Jr. Comet’s 4 inch torso adjustment stretches further across growth stages, while the Tarn 18 fits a narrower 5 to 11 age range comfortably.
Can a youth hiking backpack double as a school bag?
Compact options like the Osprey Daylite Jr. work for both, staying small enough for daily school use and light trail hikes.
The bottom line
The REI Co-op Tarn 18 Kids Pack suits most families looking for a reliable day hike bag. Growing kids benefit more from the adjustable Osprey Jr. Comet, and teens tackling overnight trips should look at the Deuter Fox 30 or Gregory Wander 38.
Derek Holt
Derek has a background coaching recreational and amateur athletes and has worked the sales floor at specialty fitness retailers. He focuses on equipment durability, ergonomics and realistic use cases rather than marketing claims.
