Size Guide
Find your perfect fit.
Finding the right size should feel simple and confident. Use the guides below alongside the fit advice provided on each product page.
True to Size
Most products fit true to size.
Check Product Pages
Each product includes specific fit recommendations.
Women's
If you're between sizes, we recommend sizing up for a more relaxed fit.
Fit Notes:
Sculpt Vest – Second skin, we recommend sizing up by one.
Activ Zip Jacket – Second skin, we recommend sizing up by one.
Men's
Fit Notes:
Core Performance Shorts – We recommend sizing up two sizes.
Accessories
Sizes for both Essential and Crew Socks.
Still Unsure?
If you're between sizes or need help choosing the right fit, we'd be happy to help.
info@activday.co.uk
or