Spark packs are Made to Order and may take 1-2 weeks for shipment.
WEIGHT: 36.6 OZ | 1,038 GM
VOLUME: 4,200 CU IN | 68 L
MAX LOAD: 35 LBS | 16 KG
SHIPS FREE TO U.S. ADDRESSES.
Our backpacks no longer include hydration sleeve, internal stash pocket, hand loops or water bungie bottle holders. They are available as add-on items going forward, and can easily be added from the cart, or from the Accessories.
The Kids Circuit is exactly like the adult Circuit, but kid-sized! The 12" to 18" adjustable harness system will grow until your little hiker's torso fits into an adult Circuit. With a removable/replaceable hipbelt, the hipbelt sizing is endless. Larger sized replacement hip belts can be purchased as needed from our Parts Shop. The youngest person ever to backpack all 2,660 miles of the Pacific Crest Trail was carrying a Kids Circuit!
Weighing in at just over two pounds, we don't think there's a pack out there that can compare to the load carrying capabilities, comfort, and durability of the Circuit pack. The Kids Circuit pack utilizes a 1.2 OZ carbon fiber and Delrin suspension hoop in conjunction with a dense internal foam frame and a single aluminum stay for excellent back panel support, maximum load control, weight transfer, and pack rigidity without limiting their range of movement.
Now Available in Xpac! Read the “Customization” section below to learn more.
This is one tough pack that will give your kid years of hiking bliss, even if they're are a bit tough on their gear!
STANDARD KIDS CIRCUIT PACK FEATURES
Removable features are in bold.
- Internal Suspension Hoop
- Padded Backpanel
- Contoured Shoulder Straps
- Front Shock Cord
- Front Mesh Pocket
- Dual Hipbelt Pockets
- 400 Robic Adjustable Side Pockets
- Rolltop Closure
- Side/Top Compression Straps
- Ice Axe/Pole Retention Loops
- Bear Canister Capable
- ULA 400 Robic
- 400 Robic Bottom Panel
- Single Aluminum Stay (1.7 oz)
You can customize the color and fabric of your ULA pack! Select "CUSTOM" under the "Pack Color" dropdown above and add your pack to the cart. Then go to our CUSTOMIZER page, select Xpac or Standard fabric, then customize the look of your pack! NOTE: Custom charges are not refundable and returned custom packs will be assessed a $35 restocking fee.
TRAIL NAME EMBROIDERY (+ $15.00): Now you can have your trail name, or your real name, embroidered on your backpack! Not only is it a nice personal touch, but it's a great way of identifying your pack no matter how or where you travel. Simply write your trail name, or your name, exactly as you want it to appear on your pack, in the text field above. Then, choose your thread color and font, and we'll personalize your pack for you. Packs that have trail names embroidered on them are still returnable, minus a $35.00 fee. The cost of the trail name is not refundable.
TOTAL WEIGHT: 36.6 OZ | 1,038 GM *
Listed weight is for a size medium torso with size medium hip belt. Our weights are as shipped including all the removable items.
REC’D MAX LOAD: 35 LBS OR LESS
REC’D BASE WEIGHT: 15 LBS OR LESS
“Base weight” refers to the total weight of all gear carried — including the weight of your ULA backpack. This weight also includes things like water bottles and food stuff sacks, but not the weight of water and food as this will vary during each trip. Knowing your base weight will help you determine which suspension system will best handle your load on the trail.
TOTAL VOLUME: 4,200 CU IN | 68 L
Breakdown (Cu In):
Main Body: 2,400
Front Mesh Pocket: 400
Left Side Mesh Pocket: 400
Right Side Mesh Pocket: 400
Extension Collar: 500
Left Hipbelt Pocket: 100
Right Hipbelt Pocket: 100
ULA 400 ROBIC
Circuit packs are sewn with our new ULA 400 Robic fabric, the toughest stuff ounce for ounce we’ve ever seen.
Colors Available: Original Green, Black, Royal Blue, Teal, Purple
HIPBELT SIZING MADE SIMPLE
For kids, use the child’s waist size and add 2 inches. The “HIPBELT SIZE” option above includes numbered measurements. The number you calculated (waist size + 2) will determine the size you need. If your child is on the outer edge of a size, order the next size up! Example: If your child has a 24″ waist, add 2 to get 26. Since 26 is the last number of the XX-Small and the first number of the X-Small hip belt, you would want to order a X-Small.
If your child’s measurement falls in the XX-Small range, you will be prompted to imput your child’s actual waist size (not plus 2″ as mentioned above, but the actual waist size.) This will help us to better fit the pack for your child before shipping.
MEASURING TORSO LENGTH
Torso measurement is the best guide we have for proper pack fit, but it isn’t foolproof. If your child’s torso measurement is between 2 sizes, order the smaller size. If you have questions, or your child’s torso size doesn’t seem to make sense for their height, please email email@example.com and he can guide you along. If they are between sizes on the hipbelt it’s best to go with the larger size, it gives them more padding and puts the pockets in a better position.
To accurately measure your child’s torso length for a correct pack fit, follow the steps below…
- Have your child stand upright, with their chin tilted to their chest.
- Locate the largest lump on the back of their neck. It should be located close to the base of their neck proper.
- From this large bone, measure (with the flexible tape) down the length and natural curvature of their spine to the top of their waist band, the top of which is resting on the top of their hipbone. This measurement in inches is their torso length.
Have any questions or your child doesn’t quite fall in the normal range? Give us a call or send us an email!
CHOOSING A SHOULDER STRAP STYLE
The J straps are the traditional straps and are the straps we recommend for most children.
If you have S-straps on your pack, and think your child would prefer S-Straps as well, we can do that too!
Q: WHAT DOES RECOMMENDED BASE WEIGHT MEAN?
A: “Base weight” refers to the total weight of all gear carried — including the weight of your ULA backpack. This weight also includes things like water bottles and food stuff sacks, but not the weight of water and food as this will vary during each trip. Knowing your base weight will help you determine which suspension system will best handle your load on the trail.
Q: DOES MY CHILD NEED THE S-STRAP OR THE J-STRAP? WHAT’S THE DIFFERENCE?
A: We recommend the traditional J-Strap for children. If you have S-straps on your pack, and think your child would prefer S-Straps as well, we can do that too!
Q: CAN A WATER BOTTLE FIT IN THE SIDE POCKETS? IF SO, CAN MY CHILD REACH IT? HOW DO THEY CLOSE?
A: Each side pocket can accommodate a 1-Liter ‘Big Slam’ style bottle. A Nalgene-style bottle will also fit, but in your quest to lighten up, that should have been replaced a long time ago! In general most people can reach back and retrieve a bottle, drink, and return the bottle to the pocket without removing the pack. The top of the side pockets are angled for easier access, and adjust singlehandedly with a cord lock and internal bungee to open and close.
Q: WHERE DO I STRAP MY CHILD’S SLEEPING PAD?
A: If they are using an inflatable pad, we recommended storing it in the interior of the pack to avoid punctures. A foam pad can easily be secured beneath the top compression strap that goes over the top of the pack or beneath the front shock cord compression. Although not necessary for optimum performance, positioning their sleeping pad into the interior of the Spark (against the back-panel) is also a good solution.
Q: WHAT IS THE SUSPENSION HOOP? HOW DOES IT WORK?
A: The suspension hoop used in the Spark is our minimal solution to transferring load between shoulder and hip. If you imagine an upside ‘U’ you get a sense of how the hoop is positioned and how it functions. The upper arch of the ‘U’ ties into the shoulder straps, while each leg of the ‘U’ ties into the hipbelt. These points of contact allow for a range of suspension flexibility while being rigid enough to support loads up to 30 lbs. In addition, because the suspension is located on the periphery of the pack body, and the back-panel is stiffened slightly with dual density foam, the result is a pack that can handle the load but does not dictate your child’s body’s movements — but rather responds to how they move.
Q: HOW DOES THE TOP OF THE PACK STAY CLOSED? IS IT EASY TO ACCESS THE MAIN BODY OF THE PACK BAG?
A: The top of the pack closes like a dry bag (also known as a rolltop) very similar to what river runners use to create a water resistant seal for their gear bags. The back of the collar is slightly taller than the front. Once they are packed, the collar can be rolled down upon itself to effectively create a barrier to water penetration. Once rolled, each side of the collar can be buckled to the sides of the pack or the two yellow buckles on the top can also be fastened to each other.
As for access, once the collar is rolled and fastened shut, your child would need to unbuckle the compression straps and unroll the collar to access the inside of the pack. However, the roll-top only needs to be rolled shut when the weather dictates. If the sky is dry, the collar can simply be folded forward. Vertical compression can still be achieved by buckling the collar to the sides of the pack.