








BaseFit Women's Panelled Fitness Vest
BaseFit by Base1 — performance gear built to pair with BaseFit.ai, our AI-powered fitness companion. Train smarter. Look sharper.
Base1 Women's Panelled Fitness Vest
Light. Technical. Designed to perform.
Cut for movement and built for intensity, this TriDri® panelled vest keeps you cool and unrestricted through every workout. The moisture-wicking fabric pulls sweat away from the skin, while mesh ventilation panels promote airflow during high-output sessions.
A flattering, athletic silhouette sits close without clinging, giving you confidence from warm-up to cool-down. The Base1 logo adds clean, understated branding that works beyond the gym.
- 100% polyester performance fabric
- TriDri® moisture-wicking technology
- Mesh ventilation panels
- Quick-dry and breathable
- Athletic fit
This product is made to order — just for you. Making products on demand reduces waste and overproduction. Please allow 3-7 business days for production before shipping.
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
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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