In this article
The KEEN Puffrider and Targhee IV Mid can both appear in a search for waterproof kids boots, but they solve different weather problems. One is an insulated winter boot; the other is a waterproof hiking boot. That distinction matters more than the shared brand name or the word waterproof.
The two models are the current Little Kids Puffrider Waterproof Winter Boot and Little Kids Targhee IV Mid Waterproof Hiking Boot.
The shortest useful answer
- Choose Puffrider when snow, cold outdoor waits and insulated coverage are recurring parts of the day.
- Choose Targhee IV Mid for wet, active walks and shoulder-season trails when the child does not need a dedicated insulated snow boot.
- Choose neither by temperature number alone. Trip length, socks, activity, fit and whether the boot starts dry all affect comfort.
Puffrider: insulation and snow-day coverage
KEEN lists the Little Kids Puffrider as style 1028022. Its official specifications include a KEEN.DRY waterproof membrane, 200 g insulation, a thermal heat-shield insole and quick-cinch bungee closure. KEEN publishes a manufacturer rating of -25 F / -32 C for this model. That is a product rating, not a promise that every child will be comfortable at that air temperature. Use it to understand the boot's intended category, then make the daily call using conditions and the child in front of you.
The taller shaft and insulated build add material around the foot and lower leg. Check that snow pants can sit over the shaft without compressing the opening, and that the child can tighten the bungee enough to hold the heel without over-tightening the forefoot. After the fitting, have them walk quickly, crouch and climb a step. A winter boot can be technically warm and still be a poor choice if its volume changes the child's movement.
Targhee IV Mid: wet routes and active walking
KEEN positions the Little Kids Targhee IV Mid Waterproof as a hiking boot with a KEEN.DRY waterproof membrane. The official current product page shows a mid-height profile, lacing and a hook-and-loop strap. It does not make the Puffrider's 200 g insulation claim. That makes the Targhee a more precise option for wet trails, rainy walks and milder transitions, not a direct substitute for an insulated snow boot.
Use the morning route test
Before choosing, write down the longest outdoor segment in the child's ordinary day. The five-minute walk from parking lot to class is not the same assignment as a 40-minute forest program. Then note whether that segment is usually cold and snowy, wet and moving, or mixed.
- Cold plus waiting: Puffrider's insulation and taller winter coverage are the relevant features.
- Wet plus continuous movement: Targhee's waterproof hiking construction may be the cleaner fit.
- Mixed day with a warm classroom: use an indoor shoe at school rather than expecting either outdoor boot to stay comfortable all day.
If one child runs warm and another complains of cold feet on the same route, do not force a household rule. KEEN's own winter guidance notes that an uninsulated hiking boot can suit milder winters or people whose feet run hot. That is a decision cue, not a diagnosis.
Fit both with the same method
Measure both feet and fit the larger one. Use the intended sock, not a stack of thick socks added after the fact. Check for toe movement while standing, then confirm the heel stays controlled while walking uphill and down a step. With Puffrider, inspect the top opening against snow pants. With Targhee, make sure the strap closes securely without reaching the very end of its adjustment range.
Try the closures with the child's cold-weather dexterity in mind. The Puffrider's bungee must be reachable and return to a secure position; the Targhee's laces and strap must hold the heel without making the strap carry all the tension.
Waterproof footwear also needs drying time. KEEN directs owners to air-dry these boots away from direct heat. Open the closure fully after wet use and plan a second footwear option if the same pair cannot dry before the next departure. Waterproof describes a construction; it does not make interior moisture disappear.
Break a close decision with exposure, pace and snow depth
If both models fit, compare the part of the route that is hardest on the child rather than averaging the whole day. Ten minutes waiting for a bus in packed snow asks more of insulation than a longer walk at a steady pace. A wet forest path with continuous movement asks more of flex, heel control and an easy stride. Puffrider is the more relevant specialist for the first assignment; Targhee IV Mid is the more relevant specialist for the second.
Then look at what reaches the boot. A taller winter boot gives more overlap with snow pants when children step into loose snow, kneel or climb over a plowed bank. A mid-height hiker is easier to justify when the route is cleared, the moisture is mostly rain or shallow puddles, and the child keeps moving. Neither profile removes the need to check how the pant cuff sits: a cuff trapped inside can carry snow or water toward the opening, while a cuff stretched tightly over the shaft can restrict movement.
Finally, compare the cost of choosing the wrong specialist. Puffrider can be more boot than a child needs for a mild, active route and still requires an indoor change plan. Targhee can be the wrong compromise for repeated cold waiting or deeper snow even though it is waterproof. If the family truly needs both jobs across the season, use two clearly assigned pairs instead of asking one model to become something KEEN does not describe it as.
Keep the category decision when you shop
Puffrider remains the insulated snow-boot choice; Targhee IV Mid remains the waterproof hiking choice. Check the exact size and colour you need before buying. If the right fit is unavailable, return to the job description in the Fall/Winter Edit rather than buying the wrong category. The Kids Shoe and Boot Sizing Guide can help you repeat the measurement step consistently.
