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Free Delivery Over £60 | 90-Day Returns | Independent & Rider-Owned Since 2008

First Layer

At Biketart, we've got your back (and your front) covered when it comes to gearing up for your cycling adventures and outdoor escapades. Dive into our collection of essential first-layer gear designed to keep you comfortable and performing at your best in any season. From snug base layers to cozy socks and underwear, we've handpicked a range of specialist technical clothing from top-notch brands like POC, Mons Royale, Madison, Giro, and More. 

When you're out on the road or hitting the trails, the right first layer can make all the difference. Why sweat the small stuff? Our technical fabrics are here to keep you feeling fresh and dry, no matter the weather. Merino, a cyclist's best friend, tops the charts for its unbeatable blend of comfort and performance. Say goodbye to chafing and hello to a smoother ride with our selection of first-layer essentials.

  • Sale
    Madison Roam Isoler Mesh Long Sleeve Baselayer Black / Medium / Large
    Madison

    Roam Isoler Mesh Long Sleeve Baselayer

    Regular price Was £24.99 Sale price Now £15.95
  • Sale
    Madison Roam Isoler Mesh Short Sleeve Baselayer Black / Medium / Large
    Madison

    Roam Isoler Mesh Short Sleeve Baselayer

    Regular price Was £24.99 Sale price Now £19.95
  • Sale
    Madison Sportive Mid Sock Twin Pack Black/Lime / L Madison Sportive Mid Sock Twin Pack Blue/White / L
    Madison

    Sportive Mid Sock Twin Pack

    Regular price Was £19.99 Sale price Now £7.95
  • Sale
    Mons Royale Atlas Crew Sock Digital - Aoraki Lily Aoraki Lily / S Mons Royale Atlas Crew Sock Digital - Aoraki Lily
    Mons Royale

    Atlas Crew Sock Digital - Aoraki Lily

    Regular price Was £29.99 Sale price Now £17.99
  • SaleOut of stock
    Bridgedale Mid-Weight Women's Merino MTB Socks Teal / S: UK 3-4.5 Bridgedale Mid-Weight Women's Merino MTB Socks Purple / S: UK 3-4.5
    Bridgedale

    Mid-Weight Women's Merino MTB Socks

    Regular price Was £23.99 Sale price Now £15.00
  • SaleOut of stock
    Bridgedale Summer Weight Coolmax MTB Socks Orange/Grey / S: UK 3-5.5 Bridgedale Summer Weight Coolmax MTB Socks Dark Grey/Light Grey / S: UK 3-5.5
    Bridgedale

    Summer Weight Coolmax MTB Socks

    Regular price Was £20.99 Sale price Now £15.00
  • SaleOut of stock
    Bridgedale Summer Weight Women's Coolmax MTB Socks Teal/Dark Grey / S: UK 3-4.5 Bridgedale Summer Weight Women's Coolmax MTB Socks Dark Grey/Pink / S: UK 3-4.5
    Bridgedale

    Summer Weight Women's Coolmax MTB Socks

    Regular price Was £20.99 Sale price Now £11.00
  • SaleOut of stock
    Mons Royale Epic Merino Shift Bike Short Liner - Black Black / L Mons Royale Epic Merino Shift Bike Short Liner - Black
    Mons Royale

    Epic Merino Shift Bike Short Liner - Black

    Regular price Was £89.99 Sale price Now £67.95
  • Sale
    Mons Royale Low Pro Merino Aircon Bike Short Liner - Black Black / L Mons Royale Low Pro Merino Aircon Bike Short Liner - Black
    Mons Royale

    Low Pro Merino Aircon Bike Short Liner - Black

    Regular price Was £84.99 Sale price Now £50.95
  • Sale
    Fox 8" Ranger Socks Black / XS/S Fox 8" Ranger Socks Olive Green / XS/S
    Fox

    8" Ranger Socks

    Regular price Was £17.99 Sale price Now £11.95
  • Sale
    Fox 8" Defend Winter Socks Black / XS/S Fox 8" Defend Winter Socks Midnight / XS/S
    Fox

    8" Defend Winter Socks

    Regular price Was £39.99 Sale price Now £25.95
  • Sale
    Fox 8" Defend Socks Black / XS/S Fox 8" Defend Socks
    Fox

    8" Defend Socks

    Regular price Was £20.99 Sale price Now £13.95
  • Sale
    Fox 6" Flexair Merino Socks Black / XS/S Fox 6" Flexair Merino Socks Cream / XS/S
    Fox

    6" Flexair Merino Socks

    Regular price Was £25.99 Sale price Now £15.95
  • Sale
    Fox 6" Ranger Socks Black / XS/S Fox 6" Ranger Socks Hunter Green / XS/S
    Fox

    6" Ranger Socks

    Regular price Was £15.99 Sale price Now £10.95
  • Sale
    Fox Youth 6" Ranger Crew Socks Black / YS Fox Youth 6" Ranger Crew Socks Black Camo / YS
    Fox

    Youth 6" Ranger Crew Socks

    Regular price Was £13.99 Sale price Now £9.95
  • Sale
    Fox 6" Ranger Socks Multipack Black / XS/S Fox 6" Ranger Socks Multipack Multi / XS/S
    Fox

    6" Ranger Socks Multipack

    Regular price Was £39.99 Sale price Now £25.95
  • Sale
    Madison DTE Trail Long Sock Black / EU 36 - 41 (UK 3.5-7) Madison DTE Trail Long Sock Magma Red / EU 36 - 41 (UK 3.5-7)
    Madison

    DTE Trail Long Sock

    Regular price Was £14.99 Sale price Now £11.95
  • Sale
    Madison Flux Performance Sock Magenta Pink / EU 36 - 41 (UK 3.5-7) Madison Flux Performance Sock Ink Navy / EU 36 - 41 (UK 3.5-7)
    Madison

    Flux Performance Sock

    Regular price Was £11.99 Sale price Now £4.95
  • Sale
    Madison Freewheel Sock Madison Freewheel Sock
    Madison

    Freewheel Sock

    Regular price Was £7.99 Sale price Now £3.95
  • SaleOut of stock
    Fox Defend Lunar 8" Socks Black / XS/S Fox Defend Lunar 8" Socks
    Fox

    Defend Lunar 8" Socks

    Regular price Was £20.99 Sale price Now £13.95
  • Sale
    Fox 8" Ranger Sock Hello Future White / XS/S Fox 8" Ranger Sock Hello Future Black / XS/S
    Fox

    8" Ranger Sock Hello Future

    Regular price Was £17.99 Sale price Now £10.95
  • SaleOut of stock
    Fox 6" Ranger Sock Frequency Black / XS/S Fox 6" Ranger Sock Frequency Lilac / XS/S
    Fox

    6" Ranger Sock Frequency

    Regular price Was £15.99 Sale price Now £10.95
  • Sale
    Fox Tecbase SL Shirt Black / S
    Fox

    Tecbase SL Shirt

    Regular price Was £39.99 Sale price Now £25.95
  • Sale
    Fox Womens Motive Bra Black / XS Fox Womens Motive Bra Olive Green / XS
    Fox

    Womens Motive Bra

    Regular price Was £69.99 Sale price Now £48.95
  • Sale
    Madison Roam Isoler Merino 4 Season Socks Black / EU 36 - 41 (UK 3.5-7) Madison Roam Isoler Merino 4 Season Socks Pink / EU 36 - 41 (UK 3.5-7)
    Madison

    Roam Isoler Merino 4 Season Socks

    Regular price Was £9.99 Sale price Now £5.95
  • Sale
    Madison DTE Isoler Waterproof Long Sock Black / EU 36 - 41 (UK 3.5-7) Madison DTE Isoler Waterproof Long Sock Dark Olive / EU 36 - 41 (UK 3.5-7)
    Madison

    DTE Isoler Waterproof Long Sock

    Regular price Was £29.99 Sale price Now £21.95
  • Sale
    Madison DTE Stellar Tech Isoler Thermal Leg Warmers With DWR Stellar Tech Black / X-Small / Small
    Madison

    DTE Stellar Tech Isoler Thermal Leg Warmers With DWR

    Regular price Was £29.99 Sale price Now £21.95
  • Sale
    Madison DTE Stellar Tech Isoler Thermal Arm Warmers With DWR Stellar Tech Black / X-Small / Small
    Madison

    DTE Stellar Tech Isoler Thermal Arm Warmers With DWR

    Regular price Was £19.99 Sale price Now £15.95
  • Sale
    POC Cadence Road Socks Hydrogen White / Small/37-39 POC Cadence Road Socks Bauxite Brown / Small/37-39
    POC

    Cadence Road Socks

    Regular price Was £30.00 Sale price Now £14.95
  • Sale
    POC Motion MTB Socks Pargasite Green / Small/37-39 POC Motion MTB Socks Bazzite Blue / Small/37-39
    POC

    Motion MTB Socks

    Regular price Was £30.00 Sale price Now £14.95
  • Sale
    Giro Chrono LS Base Layer Charcoal / XS/S
    Giro

    Chrono LS Base Layer

    Regular price Was £69.99 Sale price Now £34.95
  • Sale
    Giro Chrono SS Base Layer Charcoal / XS/S Giro Chrono SS Base Layer White / XS/S
    Giro

    Chrono SS Base Layer

    Regular price Was £54.99 Sale price Now £35.95
  • SaleOut of stock
    Giro Chrono Arm Sleeve White / XS/S
    Giro

    Chrono Arm Sleeve

    Regular price Was £44.99 Sale price Now £29.95
  • Sale
    Giro Thermal Knee Warmer Black / XS
    Giro

    Thermal Knee Warmer

    Regular price Was £59.99 Sale price Now £38.95
  • Sale
    Giro Thermal Arm Warmer Black / XS
    Giro

    Thermal Arm Warmer

    Regular price Was £54.99 Sale price Now £35.95
  • Sale
    Giro Seasonal Merino Socks Green Camo / S Giro Seasonal Merino Socks Black/Charcoal / S
    Giro

    Seasonal Merino Socks

    Regular price Was £16.99 Sale price Now £11.95
  • Sale
    Giro Chrono SL Base Layer Giro Chrono SL Base Layer
    Giro

    Chrono SL Base Layer

    Regular price Was £54.99 Sale price Now £35.95
  • Sale
    Giro Winter Merino Wool Socks Black/Grey / S Giro Winter Merino Wool Socks Charcoal/Light Grey / S
    Giro

    Winter Merino Wool Socks

    Regular price Was £18.99 Sale price Now £12.95
  • SaleOut of stock
    Troy Lee Designs Performance Socks Signature - Black / S/M Troy Lee Designs Performance Socks Signature - Oxblood / S/M
    Troy Lee Designs

    Performance Socks

    Regular price Was £19.99 Sale price Now £13.95
  • Sale
    Endura Grid Floral Ltd Print Sock Mains Grey / L-XL Endura Grid Floral Ltd Print Sock Black / S-M
    Endura

    Grid Floral Ltd Print Sock

    Regular price Was £14.99 Sale price Now £11.95
  • SaleOut of stock
    Endura Multitube Pomegranate / One size Endura Multitube Yellow Mustard / One size
    Endura

    Multitube

    Regular price Was £14.99 Sale price Now £8.95
  • SaleOut of stock
    Endura BaaBaa Merino Stripe Sock Blueberry / S-M Endura BaaBaa Merino Stripe Sock Red / L-XL
    Endura

    BaaBaa Merino Stripe Sock

    Regular price Was £12.99 Sale price Now £8.95
  • Sale
    Madison Isoler Merino Winter Cap Black / L/XL Madison Isoler Merino Winter Cap Navy Haze / L/XL
    Madison

    Isoler Merino Winter Cap

    Regular price Was £19.99 Sale price Now £9.95
  • Sale
    Ride Concepts Fifty/Fifty Merino Wool Socks Blue / M
    Ride Concepts

    Fifty/Fifty Merino Wool Socks

    Regular price Was £19.95 Sale price Now £7.95

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