I wasn’t sure about the mystery part but honestly? Best $29 I’ve spent. Everything fit perfectly and the quality is way better than I expected. Already eyeing the 6-piece next.
Mia L., 22 — Verified Buyer
Almost gone in popular sizes — lock in yours before they sell out.
📏 Sizing: Select your size at checkout. S fits 0–4 · M fits 6–8 · L fits 10–12 · XL fits 14–16.
Try Premium Activewear for $29. Zero Risk.
3 curated pieces — leggings, shorts, or a sports bra — matched to your size. No brand markup. No subscription. Just a low-risk way to see what we’re about.
3 Curated Pieces
$100+ Retail Value
Ships Free
What’s in the Box
1 Legging
High-waist, squat-proof, moisture-wicking — the kind you’ll actually reach for every time.
1 Short
Flattering, comfortable, and made to move with you — in and out of the gym.
1 Sports Bra
Supportive and breathable — the staple every gym wardrobe starts with.
Compare Box Sizes
Box
Pieces
Price
Best For
3-Piece Box
3
$29
Try it first — lowest commitment
6-Piece Box
6
$49
Most popular — solid refresh
12-Piece Box
12
$89
Best value — full wardrobe upgrade
Made for Women Who Work Hard and Spend Smart
The lowest-risk way to try us 3 pieces for $29 — if you love it (you will), the 6-piece and 12-piece are right there waiting.
Fits that feel as good as they look Stretchy, breathable, squat-proof fabrics that move with your body — not against it.
~$9.65 per piece Less than a coffee. More than you’d expect from activewear at this price.
How It Works
1
Pick Your Size
Choose your size before checkout.
2
We Build Your Box
Our team hand-picks 3 pieces matched to your size and current stock.
3
Unbox & Wear
Open it, try it on, and feel that “why didn’t I do this sooner” moment.
Common Questions
Can I choose colors or styles?
No — each box is curated by size and current inventory. That’s the mystery (and honestly, part of the fun).
Is there a subscription?
No. One-time purchase, no recurring charges. Buy it when you want it.
Can I return it?
All sales are final due to the discounted pricing. If something arrives damaged or incorrect, reach out within 7 days and we’ll make it right.
Should I upgrade to the 6-piece?
If you want more variety and a lower cost per item, yes — the 6-piece is our most popular box. But the 3-piece is the perfect way to try us first.
What size should I order?
S fits 0–4, M fits 6–8, L fits 10–12, XL fits 14–16. All styles run true to size. When in doubt, size up for the best fit through the hips.
Your gym era starts with one box.
3 pieces. $100+ retail value. $29. Free shipping. No subscription. Just add to cart.
The 3-Piece Activewear Mystery Box is a curated set of 3 performance pieces — a legging, a short, and a sports bra — all selected to your size. $100+ retail value for $29. Free shipping, one-time purchase, no subscription.
Details
1 legging · 1 short · 1 sports bra
High-waist, squat-proof construction with 4-way stretch
Moisture-wicking, quick-dry performance fabric throughout
All pieces curated to your selected size
$100+ estimated retail value
Size & Fit
Select your size before checkout. All pieces are curated to match.
Size
US Size
Bust (in)
Waist (in)
Hip (in)
XS
0–2
30–32
23–25
33–35
S
2–4
32–34
25–27
35–37
M
6–8
34–36
27–29
37–39
L
8–10
36–38
29–31
39–41
XL
12–14
38–40
31–33
41–43
Model is 5’7” wearing a size S. Between sizes? Size up for the most comfortable fit through the hips.
Shipping & Returns
Shipping
Free on all orders — no minimum
Ships within 2–4 business days
Estimated delivery: 5–10 business days (US)
Returns
All sales final due to discounted pricing
Damaged or incorrect order? Contact us within 7 days at support@activewearbox.com