Sizing (AU/US):
S: Women's 5-8.5, Men's 4-6.5 | M: Women's 9-12, Men's 7-10 | L: Men's 10.5-14 | XL: Men's 14.5-17
Need help choosing the right fit?
Use our Choosing The Right Sock Size guide to select the correct size, then view our 'Otto' Measurements to see the approximate sock length and maximum calf circumference for each size. This makes it easier to decide whether 'Otto' is the right fit for you.
Built for Everyday Comfort
Not every day calls for a thick sock. Whether you're heading to work, spending time outdoors or simply looking for a comfortable everyday sock, our 'Otto' Ribbed Merino Wool Work Socks are designed to provide the perfect balance of comfort, warmth and durability for everyday wear, work boots, casual boots and dress shoes.
Part of our Heritage Collection, 'Otto' socks are knitted in our Crookwell, NSW factory using 75% Australian-grown merino wool and 25% nylon. Their medium-weight ribbed construction provides reliable comfort without the bulk of a full-cushioned sock, making them one of our most versatile styles.
Whether you're working, walking or enjoying the outdoors, 'Otto' is designed to keep your feet comfortable throughout the day.
Why You'll Love Them
- Medium-weight ribbed construction for everyday comfort.
- Australian-grown merino wool naturally helps regulate temperature and manage moisture.
- Durable construction designed for work, walking and outdoor use.
- Ideal for snug-fitted lace up work boots and hiking boots, dress riding boots, running shoes and everyday casual footwear.
- Proudly made in Crookwell, NSW from premium Australian-grown merino wool.
Designed for Everyday Versatility
'Otto' is the ideal choice if you prefer a medium-weight sock that can comfortably handle a wide variety of activities.
Its ribbed construction provides gentle support while the medium-weight knit offers more cushioning than a lightweight dress sock without the extra bulk of our thick full-cushioned styles.
Combined with the natural breathability of Australian-grown merino wool, 'Otto' helps regulate temperature and manage moisture throughout the day, helping keep your feet comfortable across changing conditions.
Whether you're on the farm, on the worksite, heading into town or enjoying a weekend walk, 'Otto' is designed to deliver reliable everyday comfort.
Is 'Otto' the Right Sock for You?
'Otto' is ideal if you're looking for:
- Medium-weight merino wool socks
- Ribbed work socks
- Everyday work socks
- Merino wool hiking socks
- Walking socks
- Farm socks
- Australian-made socks
- Merino wool socks for year-round wear
Looking for a Different Fit or Style?
- 'Otto Loose Top' - Love the weight of 'Otto' but prefer a gentler fit around the leg? 'Otto Loose Top' features the same medium-weight construction with our elastic-free Loose Top.
- 'Echidna Loose Top' - Like a medium weight ribbed style, but don't like nylon? 'Echidna' is a synthetic-free, softer option that's made with merino wool and a small percentage of hemp.
- 'Max' - Prefer thick full cushioning? Our 'Max' socks are designed for those who want extra warmth and cushioning inside work boots.
- 'Alfred' - Want a finer knit style? Our 'Alfred' fine knit style is perfectly suited to dress shoes.
Why Choose Merino Wool?
We use Australian-grown merino wool because it's naturally breathable, helps regulate temperature and manages moisture better than many synthetic fibres.
By combining merino wool with nylon, 'Otto' socks offer the natural comfort of wool together with the durability needed for everyday work and outdoor wear.
Fibre Composition
Merino Wool: 75%
Nylon: 25%
Weight
Approx. 80g per pair
Frequently Asked Questions
How thick are 'Otto' socks?
'Otto' is a medium-weight sock that provides an excellent balance between warmth, cushioning and breathability. It offers more cushioning than a lightweight dress sock without the bulk of our thick full-cushioned work socks.
What does ribbed mean?
The ribbed construction allows the sock to comfortably mould to the shape of your foot, providing a close, supportive fit throughout the day.
Are they suitable for work boots?
Yes. 'Otto' socks are designed for everyday use in snug-fitted lace up work boots and hiking boots and a wide range of other footwear. If you have looser fitting work boots consider our 'Max' thick, full-cushioned merino work socks.
Are they suitable for hiking?
Yes. Many customers wear 'Otto' socks for hiking, walking and other outdoor activities where a medium-weight sock is preferred.
Can I wear them all year round?
Yes. Their medium-weight construction, combined with the natural properties of Australian-grown merino wool, makes them comfortable throughout the year.
Can they go in the dryer?
No. To avoid shrinkage, we recommend a cold, gentle machine wash and line-drying away from a heat source. For more information, see our Care & Storage guide.
Will they itch?
No. Australian-grown quality merino wool is naturally soft and comfortable for all-day wear.
Why do you use nylon?
Nylon adds strength and durability, helping the socks withstand everyday wear while retaining the comfort and performance of merino wool.
If you're looking for a synthetic-free medium thickness ribbed sock, you may wish to consider our Merino + Hemp 'Echidna' socks.
Where are 'Otto' socks made?
Every pair is proudly Australian made at our factory in Crookwell, NSW.
Are they available as a bundle pack?
Yes. We offer 3 pair bundle packs. To shop our bundle packs, click here.
Why is XL more expensive than the other sizes?
XL is available in Black for $39. The pricing is higher than our other 'Otto' sizes to account for the additional yarn used to make our XL socks.
Need Help Choosing?
Not sure whether 'Otto' is the right sock for you? Here are some handy links to help you decide:
- Ultimate Guide to Sock Shopping
- Choosing the Right Sock Size
- Selecting Your Style
- What are Loose Top socks?
- Caring for Your Socks
- Contact Us
For Delivery & Returns and Payment Options please see below.