1 Logo Women’s micro-rib tank top
1 Logo Women's Micro-Rib Tank
Sleek. Soft. A modern wardrobe staple.
The 1 Logo Micro-Rib Tank is the kind of piece that elevates everything around it. Made from Airlume cotton blended with polyester, the micro-rib texture adds subtle depth to a minimalist silhouette. Thick straps and a mid-length cut make it versatile enough to wear solo or as a layering base under blazers and jackets. Finished with the 1 logo for understated brand identity.
Upgrade your basics with this micro-rib tank top. Crafted from soft Airlume cotton, it features thick straps and a mid-length cut. Pair it with jeans or layer it under a blazer for a chic look.• 52% Airlume combed and ring-spun cotton, 48% polyester
• Athletic Heather colors are 90% Airlume combed and ring-spun cotton and 10% polyester
• Fabric weight: 5.4 oz./yd.² (183 g/m²)
• Yarn diameter: 32 singles
• 1 × 1 micro rib
• Pre-shrunk
• Stretch fit
• Mid-length
• Thick straps
• Scoop neck
• Side-seamed construction
• Blank product sourced from Nicaragua
This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Size Guide
Base1 Active Size Guide
All measurements are approximate. For the best fit, measure yourself and compare to the charts below. If you're between sizes, size up for a relaxed fit or size down for a tighter, athletic fit.
How to Measure
- Chest: Measure around the fullest part of your chest, keeping the tape level.
- Waist: Measure around your natural waistline, just above your hip bones.
- Hips: Measure around the fullest part of your hips.
- Length: Measure from the highest point of the shoulder to the hem.
Hoodies & Sweatshirts (Unisex / Oversized)
Our hoodies run oversized. Order your usual size for the intended relaxed fit.
| Size | Chest (cm) | Length (cm) | Sleeve (cm) |
|---|---|---|---|
| XS | 53 | 66 | 61 |
| S | 55 | 69 | 63 |
| M | 58 | 72 | 65 |
| L | 61 | 74 | 67 |
| XL | 64 | 76 | 69 |
| 2XL | 67 | 78 | 71 |
| 3XL | 70 | 80 | 72 |
T-Shirts (Unisex / Oversized)
Our oversized tees have a drop-shoulder, relaxed fit. Order your normal size.
| Size | Chest (cm) | Length (cm) | Sleeve (cm) |
|---|---|---|---|
| S | 53 | 72 | 23 |
| M | 56 | 74 | 24 |
| L | 59 | 76 | 25 |
| XL | 62 | 78 | 26 |
| 2XL | 65 | 80 | 27 |
| 3XL | 68 | 82 | 28 |
| 4XL | 71 | 84 | 29 |
T-Shirts (Classic / Regular Fit)
| Size | Chest (cm) | Length (cm) |
|---|---|---|
| XS | 46 | 66 |
| S | 48 | 69 |
| M | 51 | 72 |
| L | 53 | 74 |
| XL | 56 | 76 |
| 2XL | 59 | 78 |
Joggers & Sweatpants
| Size | Waist (cm) | Hip (cm) | Inseam (cm) |
|---|---|---|---|
| S | 74 | 96 | 74 |
| M | 79 | 101 | 76 |
| L | 84 | 106 | 78 |
| XL | 89 | 111 | 79 |
| 2XL | 94 | 116 | 80 |
Shorts
| Size | Waist (cm) | Hip (cm) | Length (cm) |
|---|---|---|---|
| S | 74 | 96 | 47 |
| M | 79 | 101 | 48 |
| L | 84 | 106 | 49 |
| XL | 89 | 111 | 50 |
| 2XL | 94 | 116 | 51 |
Leggings & Sports Bras (Women's)
Performance fit — stretchy fabric, order your usual size.
| Size | Waist (cm) | Hip (cm) | Inseam (cm) |
|---|---|---|---|
| XS | 60 | 83 | 69 |
| S | 64 | 88 | 70 |
| M | 68 | 93 | 71 |
| L | 74 | 99 | 72 |
| XL | 80 | 105 | 73 |
Swim Trunks
| Size | Waist (cm) | Hip (cm) | Outseam (cm) |
|---|---|---|---|
| 2XS | 72 | 90 | 41 |
| XS | 76 | 94 | 42 |
| S | 80 | 98 | 43 |
| M | 84 | 102 | 44 |
| L | 90 | 108 | 46 |
| XL | 96 | 114 | 48 |
| 2XL | 102 | 120 | 50 |
Basketball Jerseys & Tanks
| Size | Chest (cm) | Waist (cm) | Hip (cm) |
|---|---|---|---|
| 2XS | 88 | 72 | 90 |
| XS | 92 | 76 | 94 |
| S | 96 | 80 | 98 |
| M | 100 | 84 | 102 |
| L | 108 | 92 | 110 |
| XL | 116 | 100 | 118 |
| 2XL | 124 | 108 | 126 |
| 3XL | 132 | 116 | 134 |
Hats & Beanies
One size fits most. Snapbacks have an adjustable closure. Beanies are stretchy acrylic — one size fits all.
| Style | Circumference (cm) |
|---|---|
| Snapback Cap | 54-60 (adjustable) |
| Cuffed Beanie | 48-58 (stretch fit) |
Kids
| Age | Size | Chest (cm) | Length (cm) |
|---|---|---|---|
| 3-4 | 3/4Y | 56 | 42 |
| 5-6 | 5/6Y | 60 | 46 |
| 7-8 | 7/8Y | 64 | 50 |
| 9-11 | 9/11Y | 70 | 55 |
| 12-14 | 12/14Y | 78 | 62 |
Still unsure? Email us at matt@baseone.uk with your height, weight, and usual size, and we'll recommend the best fit for you.
Shipping & Returns
Made to order — please allow 3-7 business days for production before shipping.
UK delivery: 2-5 business days from dispatch (from £1.85)
International: 5-20 business days depending on location
Returns: 30 days for faulty or damaged items. See our Returns Policy for full details.
Free shipping on orders over £75 with code FREESHIP75.
Materials & Sustainability
We use premium, responsibly sourced materials across our range:
- Organic cotton — GOTS certified, grown without pesticides
- Recycled polyester — made from post-consumer plastic bottles
- Performance blends — moisture-wicking and quick-dry fabrics
Every Base1 product is made on demand — zero overproduction, zero waste. Better for you, better for the planet.
Pairs well with
1 Logo Women’s micro-rib tank top
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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