How do the sizes compare?
The drawings and table above use the same saved measurements as our product pages. A larger towel provides more surface area, with a corresponding change in weight. Rounded corners and edging affect usable area.
SHEEPishly Superior
The right gear.
The right fit.
Compare our merino essentials, find your liner size, and understand what changes from one design to the next.
TRAIL RAGS
Choose your towel.
Compare size, finished weight, fabric and construction. Select a product to see its current colors and availability.
Trail Rag
10 ×
10 in
Classic
14.5 ×
10.5 in
Classic XL
16.5 ×
12.5 in
Zpacks Trail Rag
10 ×
10 in
Measurements and drawings use nominal dimensions. Weights are approximate; edging and rounded corners affect usable area.
On smaller screens, swipe the table sideways to compare every option.
| Product / size | Dimensions | Approx. weight | Material | Fiber & fabric | Construction | Origin |
|---|---|---|---|---|---|---|
| Trail Rag → |
10 ×
10 in 25.4 × 25.4 cm | 0.6 oz / 17 g | 100% Australian merino | 18.5 micron · 190 GSM | Reinforced edging, rounded corners, hanging loop | Designed in South Carolina; imported |
| Classic → |
14.5 ×
10.5 in 36.8 × 26.7 cm | 0.9 oz / 26 g | 100% New Zealand ZQ merino | 18.9 micron · 200 GSM | Square corners, original sewn construction, reinforced clip loop | Sewn in Taylors, South Carolina |
| Classic XL → |
16.5 ×
12.5 in 41.9 × 31.8 cm | 1 oz / 28 g | 100% New Zealand ZQ merino | 18.9 micron · 200 GSM | Square corners, original sewn construction, reinforced clip loop | Sewn in Taylors, South Carolina |
| Zpacks Trail Rag → |
10 ×
10 in 25.4 × 25.4 cm | 0.6 oz / 17 g | 100% Australian merino | 18.5 micron · 180 GSM mesh | Reinforced binding, rounded corners, hanging loop | Imported |
What do micron and GSM mean?
Micron describes fiber diameter. GSM means grams per square meter of fabric; it is not the weight of the finished towel. Size and construction also affect the total weight you carry.
Compare each product’s listed fabric weight and construction in the table above; fabric weight is different from finished product weight.
Which one should I start with?
For most hikers and travelers, our current Trail Rag is the starting recommendation. Choose Classic for extra surface area or the original South Carolina construction; choose XL when maximum towel area is your priority.
LIMITED-EDITION COLLABORATION
Produced as a limited run with Zpacks. Once this edition sells out, it won’t be reproduced.
It remains in our separate collaboration collection. Explore the collaboration →
COMING THIS WINTER
New colors. More towel.
A first look at what’s next for our Trail Rag collection.
Coming this winter
Trail Rag in Teal & Red
Two new colors for our 10 × 10 in Trail Rag: a muted blue-green Teal and a softer, vintage-toned Red. Same compact format, two new ways to make it yours.
Lookbook color mockups. Final fabric colors may vary.
View the Trail Rag →
Coming this winter
11 × 15 in Structured Mesh Trail Rag
More surface area in the structured mesh used for the current Zpacks Trail Rag. Planned in Black and Granite, with an approximate weight of 0.8 oz (23 g).
Lookbook product mockups; final specifications subject to sample confirmation.
View the structured mesh preview →How the upcoming 11 × 15 in size compares
The planned 165 square inches sit between Classic (152.25) and Classic XL (206.25), with 65% more nominal area than the 10 × 10 in Trail Rag. The new towel uses structured mesh; the Classics use their original solid merino fabric.
Current Trail Rag10 × 10 in · 0.6 oz
Coming this winter11 × 15 in · planned 0.8 oz
Illustrations use the same scale and nominal dimensions before rounded corners.
Explore the winter preview →MERINO SLEEPING BAG LINER
Start with height.
Then consider room to move.
Use the shared size chart below for Merino Wool Sleeping Bag Liner. 100% New Zealand ZQ merino; 18.9 micron · 200 GSM. These measurements apply to this product; the Zpacks collaboration liner has its own specifications.
FIND YOUR STARTING SIZE
How tall are you?
Enter your standing height without shoes. This checks our published height limits; shoulder room and your preferred sleeping position still matter.
Swipe sideways on small screens to see the full size chart.
| Size | Fits height up to | Approx. liner length | Shoulder circumference | Approx. weight |
|---|---|---|---|---|
| Small | 5′ 6″ / 167.64 cm | 68 in / 172.7 cm | 56 in / 142.2 cm | 14.2 oz / 403 g |
| Medium | 6′ 0″ / 182.88 cm | 74 in / 188.0 cm | 56 in / 142.2 cm | 15.2 oz / 431 g |
| Large | 6′ 6″ / 198.12 cm | 80 in / 203.2 cm | 56 in / 142.2 cm | 16 oz / 454 g |
1. Measure your height
Stand barefoot against a wall and measure from the floor to the top of your head. Use your body height, rather than the length of your sleeping bag, to read the chart.
The listed liner length is the length of the item, not the maximum height of the sleeper.
2. Check shoulder room
The shoulder measurement in the chart describes the liner’s circumference, not a recommended maximum body measurement. Allow for sleep clothing, movement, and your preferred amount of room.
The fabric stretches horizontally, but we don’t publish a maximum stretched circumference. Check each size’s shoulder measurement; added length does not necessarily add width.
3. Consider how you sleep
If you’re close to a height limit, prefer extra toe room, or move a lot in your sleep, talk with us about fit before ordering. Height alone cannot predict comfort for every body or sleep position.
If you exceed the largest published height limit, the chart does not establish a suitable fit. Ask us for guidance →
Choosing a longer size
Compare length, height limit, shoulder circumference and weight in the chart above. Select for your body measurements and sleeping position; weights can vary slightly.
View liner sizes & colors →SLEEP & CAMP
Blanket or liner?
Choose based on how you want to use the layer. Their different shapes matter as much as their weights.
Ultralight Merino Blanket
For draping, wrapping, and flexible coverage. Use the open shape at camp, in your van, on a flight, or around home.
At a glance
- Blanket
- 48 × 80 in · 13.2 oz / 374 g
- Material
- 100% Australian merino
- Fiber & fabric
- 15.5 micron · 140 GSM
- Construction
- Open blanket; Hydroduct™ moisture-management technology
- Packed size (folded)
- Approx. 10 × 4 × 2½ in (25.4 × 10.2 × 6.4 cm). Dimensions vary with folding method.
Its flat width is not comparable to the liner’s shoulder circumference. It is an open blanket rather than an enclosed mummy liner.
Explore the blanket →Merino Sleeping Bag Liner
For a layer between you and your sleeping bag or quilt. Choose a length to suit your height and check room for movement.
At a glance
- Small
-
68 in ·
14.2 oz / 403 g
Fits height up to 5′ 6″ / 167.64 cm
Shoulder circumference: 56 in - Medium
-
74 in ·
15.2 oz / 431 g
Fits height up to 6′ 0″ / 182.88 cm
Shoulder circumference: 56 in - Large
-
80 in ·
16 oz / 454 g
Fits height up to 6′ 6″ / 198.12 cm
Shoulder circumference: 56 in - Material
- 100% New Zealand ZQ merino
- Fiber & fabric
- 18.9 micron · 200 GSM
- Construction
- Mummy shape; horizontal stretch
- Origin
- Sewn in Taylors, South Carolina
- Packed size (Medium)
- Approx. 9 × 3½ × 3½ in (22.9 × 8.9 × 8.9 cm). Medium size only.
Its purpose is different from a loose blanket: coverage around your body inside a sleep system or during travel.
Find your liner size ↑Ultralight Gostwyck Merino liner
Made by Glacial Gear for Zpacks, this ultralight sleeping bag liner uses 100% premium Gostwyck Ultrafine Merino wool from Gostwyck in Australia. This exclusive Merino is prized for its exceptionally fine fibers and next-to-skin softness.
It is a separate design from our standard Glacial Gear liner. Visit Zpacks for its current sizing, weight, and care instructions; the standard liner chart above does not apply to this model.
Explore the collaboration liner at Zpacks (opens in a new tab)NECK GAITERS
Less weight or more coverage?
Both gaiters use soft, stretchy, 100% New Zealand merino at 200 GSM. “Ultralight” describes the finished product; it does not mean the fabric has a lower published GSM.
Ultralight Glacial Gaiter
A lighter option for adaptable neck, ear, and hair coverage. Fold it into a headband or tuck it into your pocket.
At a glance
- Material
- 100% New Zealand merino · 200 GSM
- Origin
- Taylors, South Carolina
- Weight
- 0.5 oz
- Fit
- One size fits most
Choose this when low weight and compact coverage are your priorities. Exact garment dimensions and a head/neck fit range are not currently published.
Explore the ultralight gaiter →Glacial Gaiter
A longer, fuller tube-style design for more neck and face coverage as conditions change.
At a glance
- Material
- 100% New Zealand merino · 200 GSM
- Weight
- 1 oz
- Measurements
- 15 in front length · 11 in back length
- Fit
- One size fits most
Choose this when extra coverage matters more than minimizing carried weight. Front and back lengths are garment measurements, not neck circumference.
Explore the full-coverage gaiter →“One size fits most” is not a guarantee of fit. If you need a particular head or neck measurement, ask us before choosing.
BEFORE YOU CHOOSE
A few useful details.
Does the liner or blanket have a temperature rating?
We don’t publish a tested temperature rating or a guaranteed number of added degrees for these products. Choose your main sleeping bag or quilt for the conditions you expect. A merino layer’s comfort depends on the rest of your sleep system and how you sleep.
Do all merino products have the same care instructions?
No. Follow the instructions for the specific product. Our standard Trail Rags allow hand washing and flat drying, with delicate machine washing and low tumble drying for deeper cleaning. The gaiters specify flat drying. The standard liner allows delicate washing and flat drying or low tumble drying. The blanket specifies cold gentle washing, low tumble drying or flat drying, and no bleach or high heat. Check the Zpacks liner’s own care instructions separately.
Where do I choose Classic versus Classic XL?
Both are on the Trail Rag Classic product page. Select your color and then choose Classic or Classic XL in the Size options. Color and size combinations may have different availability.
View Classic options →Are these exact weights and dimensions?
They are the published product measurements, with weights and dimensions treated as approximate. Metric dimensions are conversions from the listed inches and are rounded for readability. Fabric, sewing, and finishing can introduce small variations. We have not inferred packed dimensions or stretch limits where those are not published.
Can I return a size that doesn’t work?
Our policy accepts returns within 30 days of delivery for unused items in their original condition. Used, worn, or washed items are non-refundable, and customers pay standard return shipping. Contact us about uncertain fit before use.
Read the full return policy →Still deciding?
Tell us which product you’re considering, your measurements where relevant, and how you plan to use it. We’ll help you narrow it down.
Ask us about fit & gear →