The System Just Expanded.
How the System Works
Every sock looks identical.
From the top, every sock looks the same.
The color on the bottom identifies the size.
Sizes are color-coded.
Choose the color that matches your child’s age or shoe size.
Built for Packs.
ThatOne works best in volume.
More socks in the drawer means fewer missing pairs.
Shop the System
- Regular price
- $30.00 USD
- Sale price
- $30.00 USD
- Regular price
-
One color. One size. Zero sorting.
The everyday crew sock designed to eliminate laundry chaos and simplify your system.
ThatOne works best as a system. We recommend starting with 12+ pairs per size.
Now available in 6 color-coded sizes — including 3 brand new sizes for toddlers, women and most teens (boys and girls).
Now Expanded To Include:
🧦 Blue – Ages 1–3 (NEW)
🧦 White – Adult Small, US W 7–9 (NEW)
🧦 Yellow – Adult Medium, US W 10–11 (NEW)
Plus your original core system sizes:
🧦 Green – Ages 4–6
🧦 Orange – Ages 7–9
🧦 Red – Ages 10–12
From Chaos to System.
About The Journey
At ThatOne, we believe the smartest ideas are often the simplest. Born from everyday moments of parenting, our mission is to take clever little fixes—like figuring out confusing kids’ shoe sizes—and turn them into products that actually make life easier.
Our story begins with ThatOne Sock—a simple fix to a confusing problem—and will continue with more everyday solutions designed to help families thrive.
Questions Parents Ask Most
ThatOne Sock is designed with a simple color-coded system so kids can easily pick the right pair themselves—no more confusing shoe sizes. AND no more pairs, multiple pairs for each size. So if you lose one no big deal just come back and replenish!
Our socks are a cotton blend, soft, breathable, and durable materials that are gentle on kids’ skin while standing up to everyday wear and multiple washes.
Each size is printed clearly on the bottom of the sock and paired with a color code in Blue (smallest) to Yellow (largest), so families can instantly recognize the right fit. See our Size Guide for more details, some styles have different color ranges.
In our "Shop" section, we will try to let customers know about upcoming products that are in the works!! Lot's of exciting ideas coming, so subscribe to our email list so you don't miss it!
ThatOne Sock is designed to grow with families, covering toddlers through most adults. There can be multiple family members using the same size in some households!