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Donald is 6ft 1″ with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL Aaliyah is 5ft 8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL
Aaliyah is 5ft 8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL
3RD ROCK sustainable unisex movemet jeans - Donald is 6ft 1″  with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL.
3RD ROCK sustainable denim jeans - Aaliyah is 5ft8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL.
3RD ROCK sustainable movement jeans - Aaliyah is 5ft8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL.
MARS
3RD ROCK sustainable jeans made with stretchy elastane - Donald is 6ft 1″  with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL.
MARS
MARS
3RD ROCK sustainable denim jeans for climbing & chilling - Aaliyah is 5ft8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL.
Aaliyah is 5ft 8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL
3RD ROCK sustainable organic cotton jeans - Donald is 6ft 1″  with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL.
Donald is 6ft 1″ with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL
MARS
Donald is 6ft 1″ with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL
Donald is 6ft 1″ with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL Aaliyah is 5ft 8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL
Model Info
Aaliyah is 5ft 8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL
Model Info
3RD ROCK sustainable unisex movemet jeans - Donald is 6ft 1″  with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL.
Model Info
3RD ROCK sustainable denim jeans - Aaliyah is 5ft8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL.
Model Info
3RD ROCK sustainable movement jeans - Aaliyah is 5ft8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL.
Model Info
MARS
Model Info
3RD ROCK sustainable jeans made with stretchy elastane - Donald is 6ft 1″  with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL.
Model Info
MARS
Model Info
MARS
Model Info
3RD ROCK sustainable denim jeans for climbing & chilling - Aaliyah is 5ft8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL.
Model Info
Aaliyah is 5ft 8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL
Model Info
3RD ROCK sustainable organic cotton jeans - Donald is 6ft 1″  with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL.
Model Info
Donald is 6ft 1″ with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL
Model Info
MARS
Model Info
Donald is 6ft 1″ with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL
Model Info

MARS

Classic straight leg jeans

Regular price £90.00

Tax included

Denim colour

Size

Select the sizing you need below. Please note, our measurements refer to body measurements, not garment measurements.

Select Category

Find Size Chart For:

Size Chest/Bust Underbust Waist
XXS/UK 6 30 24-26 24
XS/UK 8 32 26-28 26
S/UK 10 34 28-30 28
M/UK 12 36 30-32 30
L/UK 14 38 32-34 32
XL/UK 16 40 34-36 34
XXL/UK 18 42 36-38 36
Size Chest/Bust Underbust Waist
XXS/UK 6 76.5 61-66 61
XS/UK 8 81.6 66-71 66
S/UK 10 86.7 71-76 71
M/UK 12 91.7 76-81.5 76
L/UK 14 96.8 81.5-86.5 81
XL/UK 16 101.9 86.5-91.5 86
XXL/UK 18 107.0 91.5-96.5 91
PREVIOUSLY LABELLED New Size Label Waist Hips Short Inseam (SL) Regular Inseam (RL) Long Inseam (LL)
XXS 24"/UK 6 24 33 30 32 34
XS 26"/UK 8 26 35
S 28"/UK 10 28 37
M 30"/UK 12 30 39
L 32"/UK 14 32 41
XL 34"/UK 16 34 43
XXL 36"/UK 18 36 45
PREVIOUSLY LABELLED NEW SIZE LABEL Waist Hips Short Inseam (SL) Regular Inseam (RL) Long Inseam (LL)
XXS 24"/UK 6 61 84 76.2 81.3 86.4
XS 26"/UK 8 66 89.1
S 28"/UK 10 71.2 94.2
M 30"/UK 12 76.2 99.2
L 32"/UK 14 81.3 104.3
XL 34"/UK 16 86.4 109.4
XXL 36"/UK 18 91.5 114.5

Find Size Chart For:

Size Chest/Bust Waist
XXS 33 26
XS 35 28
S 37 30
M 39 32
L 41 34
XL 43 36
XXL 45 38
Size Chest/Bust Waist
XXS 84 66
XS 88.9 71.1
S 94.0 76.2
M 99.1 81.3
L 104.1 86.4
XL 109.2 91.4
XXL 114.3 96.5
Size Waist Hips Short Inseam (SL) Regular Inseam (RL) Long Inseam (LL)
26"/XXS 26 32 30 32 34
28"/XS 28 34
30"/S 30 36
32"/M 32 38
34"/L 34 40
36"/XL 36 42
38"/XXL 38 44
Size Waist Hips Inseam Short (SL) Inseam Regular (RL) INSEAM LONG (LL)
26"/XXS 66.0 81.3 76.2 81.3 86.4
28"/XS 71.1 86.4
30"/S 76.2 91.4
32"/M 81.3 96.5
34"/L 86.4 101.6
36"/XL 91.4 106.7
38"/XXL 95.5 111.8

Find Size Chart For:

AGE CHEST WAIST HIPS INSEAM HEIGHT
7-8 25 22.5 29 23.5 47
9-10 27.0 23.5 31 25.6 50
11-13 29.5 24 33 27.8 54
WOMEN'S XXS/UK 6 30 24 33 30
AGE CHEST WAIST HIPS INSEAM HEIGHT
7-8 63.5 57.2 73.7 59.7 119.4
9-10 68.6 59.7 78.7 65.0 127.0
11-13 74.9 61.0 83.8 70.6 137.2
WOMEN'S XXS/UK 6 76.2 61.0 83.8 76.2
AGE CHEST WAIST HIPS INSEAM HEIGHT
7-8 25 23 28 23.5 50
9-10 27.0 24.5 29.5 25.6 54
11-13 29.5 26 31.5 27.8 59
MEN'S XXS 33 26 32 30
AGE CHEST WAIST HIPS INSEAM HEIGHT
7-8 63.5 58.4 71.1 59.7 127.0
9-10 68.6 62.2 74.9 65.0 137.2
11-13 74.9 66.0 80.0 70.6 149.9
MEN'S XXS 83.8 66.0 81.3 76.2
Find your size
Leg Length

Why we made it

Howdy partner! 🤠 Need a pair of jeans that are versatile enough to keep up with wrangling cattle and your incredibly advance line-dancing skills? 👖

Luckily for you we’ve got the rootin’ tootinest jeans you’ll ever find right here! Made with the stretchiest denim you can get your hands on and classic styling to blend in at any hoedown - the Mars are as ready party as you are!

Made with knee darts, four-way stretch Ecomorph 3.0 denim & signature diamond crotch - these Jeans are totally zero restriction! 

We’ve also designed Mars to provide looser, more spacious fit around the thigh & calf areas. Perfect for if you want to wear your jeans over your cowboy boots! 👢

We've also reinforced belt loops, and of course added our cheeky little message on the fly opening! 😉

These jeans will make you scream YEEEHAAWWW - don’t judge us we’ve been watching Yellowstone… 🤠

Why you'll love it
  • Tailored to a classic straight leg
  • Made with organic cotton & lycra for stretch
  • Single knee darts for extra space
  • Four-way stretch durable Eco denim
  • Diamond cut crotch
  • Reinforced belt loops & elasticated waistband
  • No animal products used & a FSC certified recycled card jeans patch
  • Zipper/Fly opening with a cheeky little message 😉

Size & Fit

Donald is 6ft 1″  with a 30" waist, 36" hips & a 33" inseam and is wearing a size 30LL

Aaliyah is 5ft8" with a 26" waist, 35" hips & a 33" inseam and is wearing a size 26RL

Fabric & care

96% Organic Cotton 4% Lycra
4 Way Stretch

Save the climate and wash cold
Avoid fabric conditioner
Wash with similar colours

Shipping & Delivery
UK
  • Royal Mail 48 hours: £3.50
  • Royal Mail 24 hours: £4.50
  • Next Day delivery: £8.50

Free UK Shipping over £90.
EU

Rates start from €3.99 and don't normally exceed €9.99. Weight can also affect the delivery rate charged.

Free EU Shipping over €150. 

Orders under €150 will be sent via IOSS though 3RD ROCK takes no responsibility for any local fees incurred
Rest of world

Rates vary depending on country, parcel weight and method. Shipping rates don't generally exceed £15.99

Free ROW shipping on orders over $200

Sustainably 3RD ROCK

Sustainability

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Manufacturing

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Materials & fibres

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Design & concepts

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3RD ROCK in the wild

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