Mattison wearing her daughter in a baby carrier, ready for a forest school adventure

What We Recommend

What we actually bring to McCollum Park, vetted for PNW toddlers.

New family? Here’s what you need for Thursday.

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iksplor

100% ZQ certified merino wool, sister-owned out of Jackson Hole, Wyoming. Our pick for base layers and mid-layers that hold up across seasons. Start with their toddler base layer sets, they’re what my daughter lives in year round.

Shop toddler base layers →
OAKI

Our go-to for rain suits, boots, and cold-weather gear. Little Roots families get 25% off orders over $29.99 plus free shipping over $100.

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Reima

Finnish brand, PFAS-free since before it was a marketing angle. You’ll find specific product links throughout the page, or shop their full collection:

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The Backpack

What to look for: chest clip, external water bottle pocket, lightweight enough for your toddler to carry themselves if desired (recommended size: 12L (up to 18L for older/taller toddlers))

REI Co-op Tarn 12 L Pack (Kids) (opens in new tab)

Our top pick. Has a chest clip, water bottle pockets, and comes in fun colors. The 12L is the sweet spot for our 1 to 3 year olds who want to carry their own pack — big enough for a change of clothes, snack, and water bottle without being too bulky for little shoulders. (If your child is on the older or taller side and wants more room to grow into, REI also makes an 18 L version.)

Tip:Label everything with your child’s name. You would be amazed how many identical water bottles and backpacks show up on a Thursday morning.

What Goes in the Backpack Every Week

Every week

  • Reusable water bottle (full!)
  • Snack in a sealed container (nut-free)
  • Full change of clothes — shirt, pants, socks, underwear, weather-appropriate
  • Diapers/wipes/bags if needed
  • Two clean washcloths in a ziplock bag

Warm months

  • Sunscreen — apply before arrival, bring to reapply
  • Bug spray — apply before arrival, bring to reapply

Optional

  • Sit-upon or small towel for circle time
  • Nature collecting bag or small basket

We bring everything else — watercolors, paint, paper, magnifying glasses, bug jars, collecting trays, sensory materials, mud kitchen supplies, books. You just need your child and their backpack.

June through September

Lightweight Base Layers

A lightweight merino base layer is one of the best things your kid can wear in summer. Merino keeps them cool when it’s warm, warm when it’s cool, wicks moisture, and provides natural sun protection.

What to look for: Lightweight merino wool, around 150gsm or lower. OEKO-TEX certified is ideal.

iksplor Lightweight Merino Base Layers (opens in new tab)

Their lightweight knit (around 150gsm) is perfect for summer mornings at McCollum Park, when it starts cool and warms up fast. Same 100% ZQ certified merino as their heavier sets, from the sister-owned Jackson Hole shop we recommend year round.

Sun Hats

What to look for: Wide brim with neck coverage, UPF 50+, chin strap that stays on, chemical-free UV protection (from fabric weave, not chemical treatments).

Jan & Jul Cotton Floppy Sun Hat (opens in new tab)

100% natural cotton, UPF 50+ protection that comes from the weave of the fabric, not chemicals or dyes. Adjustable chin strap with a breakaway safety clip. Their Grow-With-Me design means you can size up and tighten the drawstring, so one hat lasts multiple seasons. Adorable prints, lightweight, and packable. This is the one that actually stays on a toddler’s head.

Trail Shoes

What to look for: Closed-toe, good grip, easy for toddlers to put on (velcro or pull-tab lacing), protective toe bumper. No Crocs or flip-flops on the trail.

Tepastelu - Toddler ReimaTec Waterproof Barefoot Shoes (opens in new tab)

Waterproof barefoot shoe with a wide toe box and zero heel drop, so feet land and move naturally on uneven ground. The 4mm sole is thin enough to actually feel what they’re walking on without losing protection. Velcro closure is easy for toddlers to handle themselves, and the insoles are removable for a more precise fit. PFAS-free.

Lomalla - Toddler Sandals (opens in new tab)

Lightweight closed-toe sandal for warmer days. Fluorocarbon- and PVC-free. Good when they want something more open but you still want toe coverage on the trail.

Trail Socks

Good socks make a bigger difference than people realize. Wet cotton socks are how blisters happen. Look for wool or wool-blend socks that wick moisture and stay put inside shoes.

What to look for: Merino wool blend, no slipping inside shoes.

iksplor Natural Fiber Trail Socks — 2 Pack (opens in new tab)

Merino wool socks in kid and adult sizes. They actually stay up and dry fast when feet get wet.

Sunscreen

What to look for: Mineral-based (zinc oxide), EWG Verified or MADE SAFE certified, fragrance-free, broad spectrum SPF 30+. Apply before you arrive. We can’t apply products to your child, but you’re welcome to reapply during class.

Babo Botanicals Sensitive Baby Mineral Sunscreen Lotion SPF 50 (opens in new tab)

This is what we use. EWG Verified, MADE SAFE certified, and B Corp. Zinc oxide only, fragrance-free, water resistant for 80 minutes, and made with plant-based ingredients like shea butter and sunflower oil. No oxybenzone, no octinoxate. Safe for babies 6 months and up.

Babo Botanicals Sensitive Baby Mineral Sunscreen Stick SPF 50 (opens in new tab)

Same trusted formula in a stick for quick touch-ups on cheeks, ears, and noses. Tosses right in the backpack.

October through May

Layer 1: Base Layer

What to look for: Merino wool or synthetic (polyester, polypropylene). OEKO-TEX certified is ideal. Long cuffs for growing room.

iksplor Merino Wool Base Layers (opens in new tab)

100% ZQ certified merino wool from a small, sister-owned company in Jackson Hole, Wyoming. Long-fitting limbs and thumbholes that let families get extended wear out of one size. They also make adult merino layers, so you can layer up the same way your little one does.

Secondhand tip:Base layers, fleece, and insulation layers are all great to find used at consignment shops, Facebook Marketplace, or resale sites. Just check labels for wool or synthetic and skip the cotton.

Layer 2: Fleece or Wool Mid-Layer

What to look for: Fleece or wool. No cotton sweatshirts. Zip-up jackets are easiest for toddlers to manage. Great to find secondhand since kids grow out of them fast.

iksplor Kids Merino Wool Jogger & Crew Set (opens in new tab)

A 100% midweight merino wool set from iksplor — noticeably warmer than a base layer, built for real cold. The relaxed crew neck layers easily over a long sleeve without bunching, and the drawstring jogger stays put through active days. Warm enough for cold nights, breathable enough to move in. Soft against sensitive skin, machine washable, and gets softer with every wash.

Layer 3: Insulation (Coldest Days)

What to look for: Down or synthetic puffy jacket, snow pants or snow suit for the coldest stretches. If it’s not labeled waterproof, it goes under the rain layer. Check thrift stores for snow gear since kids outgrow it quickly.

OAKI Snow Suit (opens in new tab)

One-piece construction means no gap between jacket and pants when kids are climbing, rolling, and doing all the things they do out there. Rated to -20°F with a 29,000mm+ waterproof rating, so it handles real cold, not just chilly mornings. The grow-fit design buys you at least an extra season before sizing up, and the shell is 92% recycled polyurethane—tough and built to last.

Reima Toddler Winter Jackets (opens in new tab)

Finnish brand, been around since 1944, and PFAS-free long before most companies were thinking about it. Good fit for layering and holds up well to repeated use.

Layer 4: Waterproof Outer Layer

What to look for: polyurethane (PU) coated, sealed seams, one size up for layering room.

OAKI One-Piece Rain Suit (opens in new tab)

A one-piece is fantastic for younger toddlers because there’s no gap at the waist for water to sneak in. Comes in tons of colors and is a forest school staple. (OAKI also makes separate rain jackets if you’d rather pair them with your own rain pants.)

Reima Toddler Outdoor Jumpsuits (opens in new tab)

An 80-year-old Finnish brand that’s been making nontoxic outerwear since long before it was a marketing angle. (Reima also makes standalone raincoats and jackets if you’d rather pair them with your own rain pants.)

Therm Kids Rain Jacket (opens in new tab)

Made from 100% recycled fabrics. Their SplashMagic prints appear when the jacket gets wet, which is basically the coolest thing ever for a toddler in the rain.

Pro tip:Pull rain pants OVER the boots, not tucked in. Trust us on this one.

Hats, Mittens & Extras

OAKI Black Neoprene Trail Gloves (opens in new tab)

Flexible neoprene gloves that stay on little hands and hold up to mud, water, and cold. Great for transitional weather when full mittens are too much but bare hands are too cold. Easy to pull on and off, and they dry quickly after a wet morning outside.

iksplor Merino Wool Beanie (opens in new tab)

100% merino wool in a slim profile that fits under hoods and helmets without bunching. Stretchy enough to stay put on a moving toddler, soft enough that they actually leave it on. Temperature-regulating and naturally odor-resistant, with built-in UPF 50 for shoulder-season sun. Sized from newborn through adult, so the whole family can wear the same hat.

Boots

What to look for: Natural rubber (not PVC), good grip, easy to pull on and off, wide enough for socks.

OAKI Kids Loop Rain Boots (opens in new tab)

Natural rubber, BPA-free, easy to pull on. They match the OAKI rain suits if you want a coordinated look. (OAKI also makes snow boots for the coldest months.)

PNW tip: McCollum Park mornings can be wet any month of the year. Keep a pair of boots in the car even on sunny days, or skip the trail shoes altogether and just make boots their default footwear for Thursday.

Bug Spray

What to look for: DEET-free, plant-based ingredients, safe for babies 6 months and up.

Badger Anti-Bug Shake & Spray (opens in new tab)

USDA Organic and DEET-free. Uses citronella, rosemary, and wintergreen oils. Safe for the whole family, including babies 6 months and older. Smells good, works well, and you can feel good about what’s going on their skin.

Badger Anti-Bug Balm Stick (opens in new tab)

Same formula in a stick. Lives in the backpack for reapplying on the trail.

Baby Carriers

hope&plum Lark Baby Carrier (opens in new tab)

Sewn in Minnesota by a women-owned manufacturer. The Baby Lark works from 10 to 45 pounds and the Kid Lark works from 25 to 65 pounds with an easy buckle system and front or back carry options. Size-inclusive with two length options designed to actually fit all bodies, not just accommodate them. Natural fibers, no foam or mesh bulk. Folds up small enough to stash in your backpack. It's the carrier I reach for daily, not just for class.

hope&plum Ring Sling (opens in new tab)

The fastest carrier to get on and off. Works from 7 to 35 pounds and adjusts in seconds with one hand. If your little one goes up and down a lot, wanting a lift between stations and then back down to explore, a ring sling lives on your shoulder and is ready the second they reach up.

hope&plum Meh Dai (opens in new tab)

A tie-style carrier with wide straps that distribute weight evenly. Adjusts from newborn through toddler, no insert needed. A great option if you deal with shoulder or back pain.

Water Bottles

What to look for: Stainless steel, plastic-free, toddler-friendly lid they can open on their own (even with mittens if possible).

Pura Kiki Insulated Straw Bottle (9oz (opens in new tab) / 11oz (opens in new tab))

The only 100% plastic-free, MadeSafe Certified bottle on the market. Stainless steel with medical-grade silicone straw and lids. The best part: you buy one bottle and swap lids as your child grows, from infant nipple to straw to sport top. No plastic ever touches their drink.

Cold months tip:Fill a thermos-style bottle with warm water or herbal tea. It’s a tiny thing that makes a cold morning so much more comfortable for little ones.

Snack Containers

What to look for: Stainless steel or silicone, BPA-free, easy for toddlers to open on their own, spill-resistant for backpacks. Remember: all snacks must be nut-free.

Elk and Friends Stainless Steel Snack Cups (opens in new tab)

Stainless steel with a removable silicone petal lid that toddlers can reach into easily. Comes with a spill-proof travel lid for the backpack. Dishwasher safe, no plastic touching food. The side handles are perfect for little hands.

Pura Stainless Steel Lunch Container (opens in new tab)

MadeSafe Certified, 100% stainless steel with a silicone band for a secure lid. Two molded compartments, no welds. Great for packing a mix of snacks.

Forest-Friendly Snack Ideas
Sit-Upons
Learning Through PLAYtrays
Shop PLAYtrays → (opens in new tab)

A Note on Buying Secondhand