Neptune Tank

Regular price: $68
Regular price: ~~$68~~
Sale price: $68
Unit price: per

Our Neptune Tank is a staple across seasons. Wear as-is during the warmer months and layer on a cardigan come fall.

Color / Salt

Salt Pitch Black Agate Dark Navy / Salt Stripe Rosewater

Size / XS

Size Guide

Size Guide: Women's Tees

A sleek, clean silhouette.

Garment Measurements

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Measuring Guide

This fit guide serves as a general guideline for helping you find your size. Exact fit may vary by style.

Bust – Measure under your arms, around the fullest part of your chest.
Natural Waist – Measure around the smallest part of your waistline, keeping the tape a bit loose.
Hips – With your legs together, measure around the fullest part of your hips.
Inseam – Measure on body, highest part of thigh to ankle bone

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Hit up customercare@outerknown.com with any questions.

Our classic fit.

Garment Measurements

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Measuring Guide

This fit guide serves as a general guideline for helping you find your size. Exact fit may vary by style.

Bust – Measure under your arms, around the fullest part of your chest.
Natural Waist – Measure around the smallest part of your waistline, keeping the tape a bit loose.
Hips – With your legs together, measure around the fullest part of your hips.
Inseam – Measure on body, highest part of thigh to ankle bone

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Hit up customercare@outerknown.com with any questions.

Easy-going, flattering yet looser fit.

Garment Measurements

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Measuring Guide

This fit guide serves as a general guideline for helping you find your size. Exact fit may vary by style.

Bust – Measure under your arms, around the fullest part of your chest.
Natural Waist – Measure around the smallest part of your waistline, keeping the tape a bit loose.
Hips – With your legs together, measure around the fullest part of your hips.
Inseam – Measure on body, highest part of thigh to ankle bone

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Hit up customercare@outerknown.com with any questions.

Tailored to hang off the frame.

Garment Measurements

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Measuring Guide

This fit guide serves as a general guideline for helping you find your size. Exact fit may vary by style.

Bust – Measure under your arms, around the fullest part of your chest.
Natural Waist – Measure around the smallest part of your waistline, keeping the tape a bit loose.
Hips – With your legs together, measure around the fullest part of your hips.
Inseam – Measure on body, highest part of thigh to ankle bone

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Hit up customercare@outerknown.com with any questions.

Cropped to sit at the natural waist. Pairs exceptionally well with high-rise styles.

Garment Measurements

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Measuring Guide

This fit guide serves as a general guideline for helping you find your size. Exact fit may vary by style.

Bust – Measure under your arms, around the fullest part of your chest.
Natural Waist – Measure around the smallest part of your waistline, keeping the tape a bit loose.
Hips – With your legs together, measure around the fullest part of your hips.
Inseam – Measure on body, highest part of thigh to ankle bone

IN | CM

Waist Size	Numerical Size	Alpha Sizes	Bust	Waist	Hips
24	0	XS	32	25	35
25	0	XS	33	26	36
26	2	XS	34	27	37
27	4	S	35	28	38
28	6	S	36	29	39
29	8	M	37	30	40
30	10	M	38 1/2	31 1/2	41 1/2
31	12	L	40	33	43
32	14	L	41 1/2	34 1/2	44 1/2
33	16	XL	43	36	46

Hit up customercare@outerknown.com with any questions.

XS S M L XL

Neptune Tank

Regular price: $68
Regular price: ~~$68~~
Sale price: $68
Unit price: per

The First Brand Founded on a Total Commitment to Sustainability

We are driven by a passion for responsible action, and courageous change.

Our Neptune Tank is a staple across seasons. Wear as-is during the warmer months and layer on a cardigan come fall.
Crafted in a durable, yet soft, hemp and Tencel™ blend.
Slightly cropped, with a relaxed neckline and lower armhole.
Seam detail down the back.

55% hemp and 45% Tencel™ Lyocell.

Hemp has been a go-to fiber for us since day one—it's durable, flexible, and requires little water and no pesticides to grow.

Tencel™ is a silky fiber made from the wood pulp of sustainably-harvested eucalyptus trees that get processed in a closed-loop system.

21" Body Length on size S
Jessica (studio model) is wearing a size S. Height: 5’10”, Bust: 34B, Waist: 24", Hips: 35"
Machine wash cold. Delicate cycle. Do not bleach. Line dry in shade. Cool iron if necessary. Dry cleanable.

Find Your Outerknown

As designers, it challenges us to build better, more sustainable products. As producers, it asks us to lift the lid on our supply chain bringing the consumer along on our journey.

Customer Reviews

5.0 Based on 17 reviews

5 ★

100%

4 ★

3 ★

2 ★

1 ★

Customer Photos

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favorite
tank
texture
fingers
neckline
Neptune Tank Top
three
season
simplicity
Small

Michele C.

United States

06/15/2021

neptune tank

The item is very well made and looks great on. would recommend

Claire C.

United States

06/02/2021

A not so basic basic

A great alternative to a tank in a beautiful green shade. Generously sized for a medium so it's not tight across my ample chest. Wish it came in a greater variety of colors.

Shannon V.

United States

05/24/2021

Low key chic.

Beautiful color, great neckline and great fabric. Very cool addition to a casual summer wardrobe.

Allison H.

United States

05/23/2021

So good

I would get this in other colors if I could!! It’s the perfect material and cut. I’ll be wearing it through every season.

Wesley L.

United States

04/29/2021

beautiful fabric, can wear for work or casual

beautiful fabric per usual for OK, nice drape, feels elegant and everyday wear

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

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Neptune Tank

Color / Salt

Neptune Tank

The First Brand Founded on a Total Commitment to Sustainability

We are driven by a passion for responsible action, and courageous change.

Find Your Outerknown

neptune tank

A not so basic basic

Low key chic.

So good

beautiful fabric, can wear for work or casual

Recommended For You

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117

Waist Size	Numerical Size	Alpha Size	Bust	Waist	Hips
24	0	XS	81	64	89
25	0	XS	84	66	91
26	2	XS	86	69	94
27	4	S	89	71	97
28	6	S	91	74	99
29	8	M	94	76	102
30	10	M	98	80	105
31	12	L	102	84	109
32	14	L	105	88	113
33	16	XL	109	91	117