Micro crew, 15.2 cm (6 in) on average. Cushion: full foot.

When you are buying for a young hiker

Darn Tough Kids Hill Topper Micro Crew Heavyweight

A micro crew hiking sock with what Darn Tough calls full cushion, a heavyweight knit and a 47% merino wool blend.

Keep in mind: Full cushioning adds fabric around the foot. If your boots already feel snug, a lighter sock may fit better. The cuff clears most low hikers and mid boots but may sit below a tall boot collar.

View at Darn Tough ↗Compare this sock

£21 list price at Darn Tough’s UK shop, checked .

Closest in Darn Tough’s range: the Kids Light Hiker Micro Crew Lightweight. They differ in weight, cushion and blend; the cuff and size chart are the same.

This sockKids Light Hiker Micro Crew Lightweight
Weightheavyweightlightweight
Cushionfull cushion, full footcushion, underfoot
Blend47% merino wool, 50% nylon, 3% elastane45% merino wool, 52% nylon, 3% elastane
List price at Darn Tough£21£19

Compare the two side by side

micro crew · 15.2 cm (6 in) on averagefull foot · Standard sock

The footwear outline is schematic. Check the cuff with your own shoes.

Materials, padding and sock type

Standard sock · full cushion

None
Light
Full
Extra
Padding shown schematically. Brand labels do not share a thickness scale.
47% merino wool50% nylon3% elastane
Exact model
Darn Tough Kids Hill Topper Micro Crew Heavyweight
Style number
3045
Size chart
Kids’ chart
Cuff height
micro crew · 15.2 cm (6 in) on average
Weight (maker’s term)
heavyweight
Cushion (maker’s term)
full cushion
Cushion location
full foot
Sock type
Standard sock
Layers
1
Material blend
47% merino wool, 50% nylon, 3% elastane
Wool-free
No, contains wool or alpaca fibre
Facts from
Maker’s US product page

Cushion and weight labels are this brand’s own terms. They are not a shared thickness or temperature rating.

Children’s UK sizes from Darn Tough UK Children’s UK sizes run up to 13.5 and then start again at 1, so 11.5–2 runs from a child’s 11.5 to size 2.
Sock sizeUK shoe sizeEU shoe size
S8.5–1126.5–29.5
M11.5–230–34
L2.5–5.535–38

Darn Tough UK: kids’ sizes

Check the size and the shoe together

Start with the kids’ chart for this exact model. Use the brand size lookup to find the published range, then check the heel position, toe room and cuff in your footwear.

The published average heel-to-cuff height is 15.2 cm (6 inches). Compare that measurement with the collar of the footwear you plan to wear. See how sock heights differ.

Try the selected size with the shoes and insoles you plan to use. Added cushioning should not crowd the toes or distort the heel position. The footwear-fit checklist explains what to check.

Care for the exact pair

Machine wash in cold water on gentle cycle with socks inside-out. Do not bleach. Tumble dry on low or hang dry. Do not dry clean.

Use the care lookup for this model’s wash and dry directions. A general wool routine should not override instructions for a membrane, a two-layer construction or a specific treatment.

Another sock to compare

Both constructions contain animal fibre (wool or alpaca). Padding: “full cushion” on both, as each brand defines it; check each brand’s size chart.

Smartwool Kids' Hike Margarita Crew uses its own size chart. Compare the two socks to see where their height, material, cushioning and care differ. Matching specs don’t mean they will feel the same in your shoes.

Two socks to compare with it

Same size chart

Darn Tough Kids Field Trip Micro Crew Lightweight

micro crew · 15.2 cm (6 in) on average · no cushion. Your Darn Tough size carries over.

Compare side by side

Same padding

Smartwool Kids' Hike Crew Full Cushion

Smartwool · full cushion · crew.

Compare side by side

Find similar socks

Product sources

For source limits and matching rules, read how this guide works.